Contact Us

You can reach the Online Casino Sites editorial team by email through the contact form on this page. We answer questions about our reviews, our ratings, and the free spins and bonus terms we write about across essentialdynamics.net. We are a research and comparison publisher, not a casino operator — so before you write, it helps to know which questions we can settle and which ones only the casino or a regulator can.

What we can help with

• Corrections. If a free spins offer, wagering requirement, deposit minimum or withdrawal limit on our pages no longer matches the operator's published terms, tell us which page and what changed. This is the fastest way to get our attention.
• How our ratings work. Questions about why one casino sits above another, or what our editorial scores measure.
• Explaining terms. If a bonus condition, a KYC request or a cashout cap does not make sense, we can explain how it usually works in plain English.
• Coverage requests. Suggest a brand, a payment method or a state licensing change you want us to look at.
• Press and partnership enquiries. Including affiliate and commercial contacts, which are handled separately from editorial.

What we cannot do

• We cannot open, close, unlock or verify an account at any casino. We hold no access to operator systems.
• We cannot release a withheld withdrawal, reverse a voided bonus or credit free spins that did not appear.
• We cannot adjudicate a dispute. That sits with the operator's complaints process and then the relevant state regulator or an approved alternative dispute resolution body.
• We do not give legal, tax or financial advice, and we do not tell anyone how much to stake.

How our commercial relationships work

Online Casino Sites earns commission when a reader follows a link to an operator and registers. That funding pays for the research. It does not buy a position on a top list, a higher editorial score or the removal of a drawback. If you contact us to ask whether a particular placement was paid for, we will answer you directly. Our independence and review process is set out in more detail on the about page, and the commercial arrangements are described in our terms and conditions.

Contacting an operator about free spins

Most of the messages we receive concern free spins that did not credit, or winnings from spins that were capped at cashout. Those are operator matters, but you will get a faster resolution if you contact them with the right information. Work through this order:

1. Screenshot the promotion page and the bonus terms as they appeared when you opted in, including the date.
2. Check the promotions tab in your account for an opt-in step. Many spin offers require an explicit claim, and some require a qualifying deposit first.
3. Re-read the wagering requirement, the maximum bet allowed while a bonus is active, the expiry window and any cap on converting spin winnings to withdrawable cash. These four conditions cause most disputes.
4. Raise it in live chat, request a ticket reference, and ask for the decision in writing.
5. If the operator's complaints procedure is exhausted, escalate to the regulator in the state where the casino is licensed, or to the ADR provider named in the terms.

Send us a copy too. Patterns across several readers change how we rate a brand, even though we cannot act on an individual case.

Where free spins sit in what we cover

Free spins are rarely a standalone gift. They usually arrive attached to a deposit match, and their value depends entirely on the conditions bolted on. Below is the headline welcome offer for each brand we currently rank, exactly as advertised by the operator and last checked on Sep 25, 2026. Advertised terms change often, and the operator's own page is always the authority.

Casino	Advertised welcome offer	Spins included	Editorial rating
Raging Bull	410% up to $10,000	50 free spins	10.0
Magician Bet	101% no wagering	Not advertised	9.9
Slots of Vegas	375% bonus	50 free spins on Cash Chaser	9.7
Uptown Aces	600% for new players	Not advertised	9.6
Card Crush	Instant welcome reward: 2 mystery coins and 5 cards	Not advertised	9.5
Zumba Cards	250% deposit bonus up to 250 SC	Not advertised	9.2
BetUS	200% up to $4,000 for new players	Not advertised	9.2
Amazon Jackpots	4 posters, 40 free SC and a bonus wheel for $20	Not advertised	9.0
Slots and Casino	500% up to $2,500, across three deposits	Not advertised	9.0
Bets.FM	225% deposit bonus up to 1 BTC	225 free spins	8.7

Ratings are our own editorial assessment of the published terms and the site experience. They are not customer review scores, and they are not a prediction of how any individual account will be handled.

Raging Bull

It leads our list because the spins are stated up front — 50 of them alongside a 410% match up to $10,000 — rather than buried in a promotions calendar. For a reader specifically comparing spin offers, a fixed, published number is worth more than a vague "spins included" line. The headline percentage is the part to treat carefully: a 410% match is only reachable at the top end with a very large deposit, and the maximum bet permitted while bonus funds are active is what usually decides whether the wagering can be cleared at all. Limitation: high-percentage matches of this shape typically carry heavy playthrough and a cap on what spin winnings convert to cash, so check both figures in the terms before depositing.

Magician Bet

The reason it sits second is the one condition most readers ask us about: no wagering on the 101% offer. If a bonus genuinely carries no playthrough, winnings behave like cash, which removes the single biggest cause of the disputes described above. That makes it a useful reference point when you are judging whether a 400% or 600% headline elsewhere is actually better value. Limitation: no free spins are advertised as part of the welcome package, and no-wagering offers are generally smaller and more tightly capped than matched-deposit alternatives. Confirm the maximum bonus amount and any cashout ceiling.

Slots of Vegas

This one earns its place because the spins are tied to a named title — 50 on Cash Chaser alongside a 375% bonus — which tells you exactly where the spin value lands. Game-specific spins are easier to evaluate: you can look up the title's return to player and volatility before you claim, rather than guessing. A high-volatility slot will swing the outcome of 50 spins dramatically; a lower-volatility game gives steadier, smaller returns toward a wagering target. Limitation: spins restricted to a single game are worthless if you dislike that game, and per-spin value is often set low, so the headline count can overstate what is at stake.

Uptown Aces

Worth including for contrast: a 600% new-player match is the largest headline percentage on our list. Large multipliers suit players making small deposits who want a long session bankroll rather than a realistic withdrawal path. Limitation: the bigger the multiplier, the more restrictive the surrounding terms tend to be, and no spins are advertised with it. Read the maximum bet rule first — breaching it is the most common reason a bonus and its winnings are voided.

Costs, deposits and getting paid

Every offer on this page requires you to risk your own money, apart from any promotion explicitly described as no-deposit. Nothing here is free in the everyday sense. The practical costs to check before you contact anyone:

• Minimum deposit. Match offers set a qualifying minimum, and depositing below it usually forfeits the bonus with no way to backdate it.
• Payment methods. In the US, debit cards are the most widely accepted route, with credit cards frequently declined by the issuing bank for gambling transactions. ACH bank transfers, online banking, wire transfers and prepaid play-plus style cards are common alternatives. PayPal and other e-wallets are available at some state-licensed operators but not universally — verify on the cashier page rather than assuming. Crypto is used by some brands, including the Bitcoin-denominated offer above; availability and any conversion cost vary.
• Fees. Deposits are usually free at the casino end, but card issuers may treat a gambling deposit as a cash advance and charge for it. Wire withdrawals often carry a fixed fee.
• Withdrawal timings and limits. Expect a pending or reversal period before funds are released, then the payment network's own processing time. ACH and card refunds typically take several business days; wires are slower and pricier. Most operators publish a minimum withdrawal amount and a weekly or monthly ceiling. Winnings from free spins are frequently subject to a separate, lower cashout cap.
• Verification. Your first withdrawal triggers KYC: a government ID, proof of address and proof of the payment instrument used. Larger or unusual sums can trigger source-of-funds checks. Submitting documents early, in the exact name on the account, is the single best way to avoid a delayed payout.

The games these offers apply to

Free spins apply to slots almost without exception, so it is worth knowing how the categories differ when you are deciding where a bonus is useful.

• Slots. The home of spin promotions. Outcomes come from a random number generator; published RTP tells you the long-run theoretical return, and volatility tells you how lumpy the ride is.
• Progressive jackpots. Often excluded from bonus play entirely, or contributing nothing toward wagering. Check before you use bonus funds on one.
• Table games. Blackjack, roulette and baccarat usually contribute a reduced percentage toward wagering requirements, sometimes zero.
• Live dealer. Streamed tables with human croupiers. Commonly excluded from welcome bonuses.
• Mobile. Most of this catalog runs in a mobile browser, and several brands offer apps. Bonus terms are identical across device; only the interface changes.

Software providers matter here too — the studio behind a title sets its RTP and volatility, and those figures are what turn a spin count into an expected value.

Beyond casino play

Several operators we cover run more than a casino. BetUS, for example, advertises a sportsbook alongside its casino product, and sports promotions carry different rules: odds minimums instead of slot wagering, settled-bet conditions instead of spin caps. Card Crush, Zumba Cards and Amazon Jackpots advertise coin, sweeps-coin and card-based formats, where the currency in a promotion — SC rather than dollars — determines how and whether it redeems. Do not assume a casino bonus balance moves across to a sportsbook or a coin product; in most cases the wallets are separate and the terms are written separately.

Legal standing, eligibility and where to get help

You must be 21 or over to register at most US online casinos, and 18 or over in a small number of jurisdictions. Online casino gambling in the United States is regulated state by state, not federally: a handful of states license and authorize internet casino play, and the rest do not. Federal law governs payments and interstate transmission, but it is your state that decides whether an operator may legally serve you, and geolocation checks enforce it. An operator accepting registrations from a US address is not the same thing as being authorized to serve your state — check the licensing details and the state list before depositing, and check them again if you move.

If gambling has stopped being entertainment, stop before you contact us about a bonus. The National Council on Problem Gambling operates the 1-800-GAMBLER helpline, available 24/7, with text and chat options. Operators are required to offer deposit limits, loss limits, time-outs and self-exclusion; state regulators run their own exclusion registers, and blocking software can restrict access at the device level. Our responsible gambling resources page sets out the tools and where to find them.

Common questions about reaching us

How long does a reply take?

We answer as quickly as we can, and corrections to published pages go to the front of the queue. We are a small editorial team rather than a support desk, so urgent account problems should go to the casino's own live chat first.

Can you get my withdrawal released?

No. We have no access to any operator's systems and no standing in a payment decision. Use the casino's complaints procedure, keep the ticket references, then escalate to the state regulator named in its licensing information.

Do you take payment to change a review?

No. Commission funds the site, and it is disclosed. It does not alter a score, a ranking or a stated drawback. If you believe a review is wrong on the facts, send the evidence and we will re-check it.

Can you tell me which casino is legal in my state?

We can point you to what an operator publishes about its licensing and state availability, and explain how to verify it with the state regulator. We cannot give legal advice, and availability changes.

Do you cover casinos outside the US?

Our main focus is the US market. We do maintain separate coverage of non-Gamstop casinos for UK readers, which follows entirely different rules and is not relevant to US players.

Before you write to us

Include the page URL, the operator, the date you saw the offer and a screenshot if you have one. That turns a general question into something we can act on. If your message is about a disputed bonus or an unpaid balance, send it to the casino first and copy us second — you will get a resolution faster, and we will get the pattern data that makes the next reader's decision better. Questions about how we score and rank are always welcome, and the contact form is the right place for them.