Get in Touch With Us
This is the page to use when you want to reach the editorial team behind Mastercard Casinos — whether that is a correction to one of our Mastercard casino reviews, a question about how card deposits and payouts are ranked, or a partnership enquiry. Below you will find where to write, what we can realistically help with, and the things you should take to the operator or a support service instead.
Where to Write
Email is the only channel we monitor. Messages sent to the addresses below reach a person, not an autoresponder, and we aim to reply within two business days. Longer enquiries — a detailed correction, a licensing question, a commercial proposal — can take a little more time.
- General and reader questions — [email protected]
- Corrections and fact checks — [email protected]
- Partnerships and commercial — [email protected]
Include the page you were reading, the operator involved, and the date you saw the information. Bonus terms, deposit limits and card acceptance change without notice, so a date makes the difference between us confirming something in an hour and chasing it for a week.
How We Make Money, and What That Means for Your Message
We are an independent comparison site. Some links to the casinos we cover are commercial, and we may earn a commission if you open an account through them. That arrangement pays for the research; it does not buy a position in our rankings, a rating, or protection from criticism. If you think a review reads like it was bought, say so in your email and point to the sentence. We would rather rewrite a paragraph than defend one.
What We Can Help With — and What We Cannot
| You contact us about | What happens |
|---|---|
| An out-of-date bonus figure or wagering requirement | We re-check the operator's published terms and correct or remove the claim |
| A Mastercard deposit that was declined | We can explain the common causes, but only your bank and the casino can resolve it |
| A withdrawal that has not arrived | Goes to the casino's support team first; tell us if the operator stops responding |
| Account closure, KYC documents, verification holds | Handled solely by the operator — we have no access to any casino account |
| A site you think we should review | Added to our research queue; we cannot promise coverage or a timeline |
| Gambling harm or a self-exclusion question | We point you to the support services listed further down this page |
To be plain about it: we do not hold funds, process payments, issue bonuses, or have any ability to release a stalled payout. Every casino on this site is a separate company with its own live chat and support desk.
Before You Email About a Card Problem
Most of the messages we get about Mastercard deposits come down to one of a handful of causes, and you can usually clear them faster yourself than by writing to anyone.
- Issuer coding. US banks classify gambling deposits under a cash-advance style merchant category, and many block them outright. A decline at this stage is your issuer's decision, not the casino's.
- Credit versus debit versus prepaid. Acceptance differs. Debit Mastercard often clears where a credit card does not, and prepaid cards — including gift-style Mastercards — may fail address verification or simply not be supported.
- 3D Secure. If the authentication step times out or your phone number on file is stale, the transaction fails even with funds available.
- Name and address mismatch. The cardholder name must match the casino account exactly. Third-party cards are refused as a matter of policy almost everywhere.
- Cash-advance fees. Where a card deposit does go through on credit, your issuer may treat it as a cash advance with a fee and immediate interest. Check your statement before assuming the casino charged you.
Withdrawals are a separate matter. Mastercard payouts back to the card are not universally supported in the US, and many operators route cashouts to bank transfer, check by courier, or crypto instead — often with different minimums, caps and processing windows than the deposit side. If a site's stated payout route has changed, that is exactly the kind of thing worth emailing us about.
Questions About the Casinos We Rank
We are asked most often about the operators at the top of our list, so here is the short version of why each is there and where it falls short. Fuller detail sits in the individual reviews.
Raging Bull
Our highest-rated listing at 10.0, largely on the strength of a deep slots library and consistent card-deposit handling across credit and debit Mastercard. The advertised welcome package is 410% up to $10,000 plus 50 free spins, which applies to qualifying new-player deposits and carries playthrough requirements before any winnings can be withdrawn — read the bonus terms in full, because the headline percentage is the least important number in them. The limitation: a bonus of that size comes with wagering that takes real volume to clear, and the game weighting means table games contribute far less than slots. High rollers should also confirm the maximum cashout attached to the offer.
Magician Bet
Rated 9.9, and on this site mostly for readers who dislike bonus conditions. The 101% no-wagering offer is unusual: the value is smaller than a 400% match, but what you win is yours without a playthrough hurdle. Eligibility and minimum deposit conditions still apply, and no-wagering offers typically come with tighter caps. The trade-off is scale — the game library and promotional calendar are narrower than the larger brands here, so if you want a constant stream of reload offers this is not the one.
Slots of Vegas
Also 9.9, and the slots-first pick. The welcome offer is 375% plus 50 free spins on Cash Chaser, with the spins tied to that specific title and subject to wagering on any winnings. Its appeal is breadth of reels and jackpot titles rather than banking innovation. The limitation is a familiar one for slots-led operators: live-dealer and table coverage is thinner than at a full-range casino, and free spins locked to a single game suit some players and irritate others.
Uptown Aces
At 9.6, the 600% new-player offer is the largest percentage on our list. Large multipliers almost always pair with the strictest conditions — minimum deposit, maximum bet while a bonus is active, and a withdrawal cap. Treat it as extra playing time, not as headline cash.
What You Actually Get at These Sites
Across the operators we cover, the catalog generally breaks into the same categories, and it is worth knowing which matter to you before you email us for a recommendation:
- Online slots — the bulk of every library, from three-reel classics to feature-heavy video slots. RTP varies by title and is published in the game info panel.
- Progressive jackpots — pooled prizes that grow until someone hits. Long odds; the house edge is higher on most progressive titles than on standard slots.
- Table games — blackjack, roulette, baccarat and their variants, each with its own house edge and table limits.
- Video poker — paytable-driven, and the paytable, not the brand, determines the theoretical return.
- Live-dealer rooms — streamed tables with human croupiers, usually with higher minimums and no demo play.
- Sweepstakes-style coin play — some listings, including Card Crush, Zumba Cards and Amazon Jackpots, run on virtual coin or sweeps models rather than direct real-money wagering, which changes both eligibility and how redemptions work.
Game engines come from third-party software studios, and independent RNG certification is what makes published RTP figures meaningful. If a site you are considering does not disclose its providers or testing, that is a fair question to put to its support team before depositing.
The Other Products These Brands Run
Several operators on this list are not casino-only. BetUS, for instance, runs sportsbook and racebook products alongside its casino, and its 200% up to $4,000 new-player offer may carry different rollover terms depending on which product you play. Bets.FM leans crypto, with a 225% deposit bonus up to 1 BTC plus 225 free spins — relevant here mainly as context, since a crypto-denominated offer is not something a Mastercard deposit will typically unlock. Sportsbook wagering, poker rooms and lottery-style games all sit under separate terms, separate bonus wallets and sometimes separate wagering math from the casino bonus. Never assume a casino match applies to a sports bet.
How We Score Sites, If You Want to Challenge a Rating
Our ratings are editorial judgments formed from published operator information, banking documentation and regulatory records — not customer review scores, and not the result of us depositing or playing. We weight: Mastercard acceptance across credit, debit and prepaid; stated deposit and withdrawal limits and fees; payout routes and processing windows; the honesty of bonus terms relative to the headline number; library breadth and provider disclosure; licensing and RNG certification; mobile and browser play; and support availability. Commission arrangements are recorded separately from scoring and play no part in it.
If you disagree with a score, tell us which criterion you think we got wrong and why. That is a far more useful email than a general complaint, and it is the kind we act on. Readers comparing markets sometimes also ask about offshore operators outside US licensing; our overview of casinos operating outside the GamStop scheme covers a different regulatory environment entirely and should not be read as a US recommendation.
Eligibility, Licensing and Age
Real-money online casino play in the United States is regulated state by state. A handful of states license online casinos through bodies such as the New Jersey Division of Gaming Enforcement, the Pennsylvania Gaming Control Board and the Michigan Gaming Control Board; most do not. Sweepstakes and social-coin models operate under different rules again, and availability varies by state. It is your responsibility to confirm that a given operator is lawfully available where you are before you register or deposit — and we will tell you plainly if we cannot verify a licence rather than implying one exists.
Minimum age is 21 in most US jurisdictions and 18 in some; the operator and your state set the threshold, not us. Every site will require KYC identity verification — government ID, proof of address, and often a card or payment document — before releasing a withdrawal. Gathering those documents at signup rather than at cashout is the single easiest way to avoid a payout delay. Tax treatment of gambling winnings is a matter for a qualified professional; we do not give tax or legal advice by email.
If Gambling Has Stopped Being Fun
We cannot provide counseling, and we will not try. If your play is causing you or someone close to you harm, confidential help is available 24/7 in the US through the National Problem Gambling Helpline at 1-800-522-4700, which also operates by text and online chat. Every licensed operator offers deposit limits, session reminders, cooling-off periods and self-exclusion — you can set these before you play, not only after something goes wrong. Gambling carries a real risk of losing money, and no bonus percentage, strategy or site on this list changes that.
Sending Us Something Useful
A good message is short and specific: the operator, the page, the date, the exact wording you are questioning, and a screenshot if you have one. A vague note takes us days of back-and-forth; a precise one often gets fixed the same afternoon. Either way, write when you have something to say — reader corrections are a large part of how this site stays accurate between our own review cycles.