Get in Touch With Us
This page is for reaching the editorial team behind Top Mastercard Casinos. We research and compare US-facing online casinos that accept Mastercard, and we rely on readers to tell us when a deposit stops going through, a bonus term changes, or a payout window looks nothing like what an operator advertises. Email is the only channel we run: [email protected].
We are not a casino, a payment processor, or a customer service desk for any brand listed on this site. We cannot access your account, release a pending withdrawal, reverse a declined card transaction, or unlock a bonus. If that is what you need, contact the operator's live chat first and your card issuer second — those two together resolve most Mastercard problems.
What we can actually help with
- Corrections. A bonus percentage, playthrough multiple, deposit cap or withdrawal method that no longer matches what the operator publishes. Include a screenshot or the page you saw it on and we will re-check it.
- Questions about how card banking works. Credit versus debit versus prepaid Mastercard, 3D Secure prompts, why an issuer codes a gambling deposit as a cash advance, why card-to-bank refunds are not offered everywhere.
- Which page covers what. If you cannot find the comparison you want, tell us and we will point you at it or write it.
- Methodology questions. How a site earned its editorial rating, and why a commercial relationship did not move it.
- Partnership and media enquiries. Introduce the brand, the proposal and the contact who can answer compliance questions.
- Responsible gambling concerns. Mention it in the subject line and we will reply with support routes rather than a comparison.
Commercial disclosure
Some links on this site are commercial. If you open an account through one, Top Mastercard Casinos may earn a commission at no extra cost to you. That arrangement pays for the research; it does not buy a position in our rankings, and it does not stop us publishing a drawback. If you think a page reads like an advert, that is exactly the kind of message we want.
Before you email about a declined Mastercard deposit
Card declines are the single most common thing readers write to us about, and most are fixable without us. Work through this first:
- Check the card type. Many issuers block credit-card gambling transactions outright while allowing debit. A debit or prepaid Mastercard often clears where a credit card does not.
- Confirm the billing address and name on the card match your casino account exactly. Mismatches trigger silent declines.
- Complete the 3D Secure step if your bank pushes one to its app. Abandoning it registers as a failed authentication, not a bank error.
- Call the number on the back of the card and ask whether merchant category 7995 is blocked on your account.
- Check the operator's minimum and maximum per-transaction limits. A deposit under the floor or over the ceiling fails without a useful message.
If it still fails after all five, tell us the operator, the card type and the error wording. Patterns across readers are how we find out an acceptance rate has slipped.
Reader questions we answer most often, by site
Three of the operators we cover generate more mail than the rest, so here is the short version of what we tell people. Ratings below are our own editorial scores, not customer review averages, and every offer figure comes with terms you must read on the operator's own page before depositing.
Raging Bull — ranked first, and the most-asked-about
It sits at the top of our list because it combines a card-friendly cashier with a deep RealTime Gaming slot library and consistently published bonus terms, which is more than several higher-profile brands manage. Editorial rating 10.0. The headline is 410% up to $10,000 plus 50 free spins, and that number is the reason most emails arrive: a match that size carries a substantial playthrough requirement, usually with slots weighted at full value and table games contributing little or nothing. Read the multiple and the maximum cash-out before you claim it. Limitation: the game mix is heavily slots-led, so if you came for a broad live-dealer floor or high table limits on blackjack, this is not the strongest fit.
Magician Bet — the one people ask about because of wagering
Editorial rating 9.7. It is on this page because its 101% No Wagering offer answers the complaint we hear most: bonus money you cannot realistically convert. A no-wagering structure means what you win from the bonus is withdrawable without a playthrough loop, which suits card players who want a clean exit to their Mastercard. Limitation: no-wagering offers are almost always smaller in headline value and tend to come with tighter maximum bet and maximum win caps, so high rollers usually find the ceiling quickly. Check the cap before assuming "no wagering" means unrestricted.
Slots of Vegas — the free spins questions
Editorial rating 9.6. Readers write in about the 375% bonus plus 50 free spins on Cash Chaser, specifically about why the spins are locked to one title. That is normal: game-specific spins exist because the studio funds them. The site earns its place through a reliable coupon-code cashier and clear progressive jackpot listings. Limitation: spins tied to a single slot mean the RTP of that one game decides your outcome, and jackpot titles typically run a lower base RTP than standard slots. Winnings from spins usually convert to bonus funds with their own playthrough.
The rest of the list, at a glance
| Site | Headline offer (terms apply) | Editorial rating |
|---|---|---|
| Uptown Aces | 600% for new players | 9.6 |
| Card Crush | Instant welcome reward: 2 mystery coins and 5 cards | 9.2 |
| Zumba Cards | 250% deposit bonus up to 250 SC | 9.2 |
| BetUS | 200% up to $4,000 for new players | 9.0 |
| Amazon Jackpots | 4 posters, 40 free SC and a bonus wheel for $20 | 9.0 |
| Slots and Casino | 500% up to $2,500 across three deposits | 8.6 |
| Bets.FM | 225% up to 1 BTC plus 225 free spins | 8.4 |
Note that offers quoted in SC relate to sweepstakes-style play rather than a dollar deposit match, and the Bets.FM figure is denominated in cryptocurrency — neither is a Mastercard deposit bonus, and we say so when readers ask. If you hold us to an amount here that has since changed, send the message. We would rather correct it.
Money questions we can and cannot answer
We can explain how card banking generally works at these sites. We cannot see your cashier.
- Cost to take part. Nothing to read this site. At an operator, your cost is your deposit, plus any issuer charge. Some banks treat a casino deposit as a cash advance, which carries a fee and interest from day one on a credit Mastercard — a debit or prepaid card avoids that entirely.
- Deposits. Mastercard credit, debit and prepaid are the common routes, usually instant when approved. Minimums and maximums are set per operator and per card, so check the cashier rather than a comparison page.
- Withdrawals. Not every site that takes a Mastercard deposit pays back to it. Where card-to-bank payout is unavailable, expect bank transfer or an alternative method, and expect a pending review period before processing starts. Timings vary by operator and by your bank.
- Fees and verification. Ask any site that charges a verification fee to explain it in writing. Legitimate KYC checks — ID, proof of address, card ownership — are a condition of payout, and completing them before your first withdrawal request is the single best way to avoid a delay.
Game and provider queries
The libraries at the sites we cover break into online slots including progressive jackpots, table games such as blackjack, roulette and baccarat, video poker variants, and live-dealer rooms where offered. Studio lineups differ, and so do the RTP figures a studio publishes for the same title across operators. If you want to know who supplies a game or whether a site publishes RNG certification, ask — we will tell you what is verifiable and what is not, rather than filling the gap with a guess. Beside their casino floors, several of these brands run sportsbooks and racebook products; BetUS in particular is known as a sports-betting operation as well as a casino, and bonus terms almost never carry across from one product to the other. Assume a casino welcome offer excludes sports wagering unless the terms say otherwise.
Eligibility, licensing and the limits of our advice
You must be of legal gambling age where you are — 21 in most US states for real-money casino play, 18 in some jurisdictions and for some sweepstakes formats — and physically located somewhere the operator accepts. Regulated online casino play in the US is state-by-state, overseen by bodies such as the New Jersey Division of Gaming Enforcement, the Pennsylvania Gaming Control Board and the Michigan Gaming Control Board. Other sites on this list operate under offshore licensing, which carries a different level of consumer recourse. We report licensing status as an operator publishes it and we do not certify it ourselves. For anything touching tax or the legality of play in your state, consult a qualified professional — we are not able to give legal or tax advice by email.
How we score, in case you want to challenge it
Our ratings come from desk research and verification against operator-published terms, not from staff play. We have not deposited, wagered or withdrawn at these sites, and we will never present an advertised payout speed as a tested one. The factors we weigh are card acceptance and the clarity of the cashier, published payout timings and limits, bonus terms including playthrough and win caps, library breadth and studio lineup, licensing disclosure, support availability, and the responsible gambling tools on offer. If you disagree with a score, tell us which factor you think we got wrong and we will look again. Readers comparing options outside US-regulated frameworks sometimes find our coverage of casinos operating without GamStop useful for context on how licensing changes the protections available.
If gambling has stopped being fun
Say so in your message and we will reply with support options rather than offers. In the US, the National Council on Problem Gambling helpline is available 24/7 by calling or texting 1-800-GAMBLER, and chat is available through their service. Every operator we list should give you deposit limits, session reminders, cooling-off periods and self-exclusion in account settings; if one makes those hard to find, that is worth reporting to us. Playing real-money casino games means risking money you may not get back. It is entertainment, not income.
Response times and what to include
A real person reads every email. We aim to reply within two business days and may take longer around holidays. Corrections get priority because they affect everyone reading the page. To speed things up, include the operator name, the page or screen you are referring to, the date you saw it, and a screenshot where you have one. Please do not send account numbers, full card numbers, passwords or copies of ID — we have no use for them and no need to hold them.
Last reviewed Sep 25, 2026. If something on this site is out of date by the time you read it, the fastest way to fix it is to tell us. 21+ where required, 18+ for some formats. Terms and conditions apply to every offer mentioned.