Every UK-licensed casino must confirm who you are before you can deposit or play, and Mythoswin is no exception. For most players the check is automatic and invisible; for the rest, a couple of clear photos sort it out within 24–48 hours.
Why verification comes first
Under UK Gambling Commission rules, age and identity verification (KYC — “know your customer”) must be completed before any deposit or play. When you complete the Mythoswin sign up, the casino checks your full name, date of birth and UK address against electronic databases.
- Passed automatically: usually within minutes. You can go straight to the Cashier.
- Not matched: you will see a prompt to upload documents under My Account → Verification.
Common reasons for a failed automatic check include a recent house move, a name that differs from your bank records (for example a married name), or a typo in the date of birth.
Documents Mythoswin accepts
| Purpose | Accepted documents | Requirements |
|---|---|---|
| Photo ID | Passport or UK driving licence (photocard) | In date, all four corners visible |
| Proof of address | Utility bill, bank or credit union statement, council tax bill | Dated within the last 3 months, shows name and address |
| Proof of payment | Photo of debit card (middle digits covered), e-wallet account screenshot, bank statement | Name must match the Mythoswin account |
| Source of funds | Payslips, bank statements, savings or pension statements | Requested only for larger amounts |
For payment card photos, cover the middle eight digits and the CVV on the back. Mythoswin only needs the first six and last four digits.
Photo tips that avoid rejection
- Lay the document flat on a dark, plain surface in good daylight.
- Show all four corners — cropped edges are the top reason for rejection.
- Turn off flash to avoid glare over the photo or text.
- Upload a colour photo or PDF, not a scan of a photocopy or a screenshot of a screenshot.
- Upload full pages of statements, not a cropped section, so the issuer and date are visible.
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Why documents get rejected
| Rejection reason | Fix |
|---|---|
| Document expired | Upload a valid, in-date passport or licence |
| Address document older than 3 months | Download a recent statement from your banking app |
| Blurry, cropped or glare | Retake in daylight, flat, all corners visible |
| Name or address does not match account | Contact support to correct account details first |
| Screenshot of a bill rather than the document | Upload the full PDF or a photo of the paper copy |
| Card details not covered | Re-upload with middle digits and CVV hidden |
If the name on your documents differs from the account because of marriage or deed poll, upload the supporting certificate alongside your ID.
Timescales
- Automatic check: usually within minutes of registration.
- Manual document review: up to 24–48 hours.
- Withdrawal approval after verification: within 3 hours, 24/7.
Mythoswin may ask for documents again later — for example before a first withdrawal to a new payment method, or if your address changes. Keeping your details current avoids delays on Mythoswin withdrawals.
Source-of-funds and affordability checks
For larger amounts, Mythoswin may run a source-of-funds check. This is required by UK anti-money-laundering and safer-gambling rules. You may be asked for recent payslips, bank statements or evidence of savings, inheritance or a property sale.
Still waiting? Contact support
If more than 48 hours have passed since upload, contact Mythoswin customer service through 24/7 live chat or email. Give your registered email, the date you uploaded and which document type. Support can tell you whether a document is still in the queue or was rejected and why. More help is in the Mythoswin help centre, and the privacy policy explains how documents are stored.

