KYC Documents Typically Accepted
Which identity, selfie, address and source-of-funds documents Duel.com's Checkin.com verification usually accepts, what gets rejected, and how to capture each one so it passes first time.
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Quick answer
Duel.com has no routine KYC, so most players never need this page. When a discretionary check does arrive, the request runs through Checkin.com, a third-party identity provider, and the document classes it asks for are the same ones the whole industry uses. Duel.com does not publish an exhaustive accepted-documents list; what follows is what Checkin.com-powered flows generally accept and refuse, and how to prepare each class so the automated stage passes on the first attempt. For the process itself, start with the verification guide.
The four document classes
| Class | What it proves | Usually requested when |
|---|---|---|
| Government photo ID | Identity and age | Any verification request |
| Selfie / liveness | You are the person on the ID | Almost always paired with the ID |
| Proof of address | Where you live, and that it is an accepted jurisdiction | Region or VPN concerns |
| Source of funds | Where the money came from | Large or unusual volumes |
The request will state which classes it wants. Send exactly those. Extra, unrequested documents do not accelerate anything and can move a case into a slower manual queue.
Class 1: Government photo identification
| Feature | Generally accepted | Notes |
|---|---|---|
| Passport | Yes | Most reliable — standardised internationally, one page to capture |
| National ID card | Yes | Both sides usually required |
| Driving licence | Yes | Photo licences only; both sides often needed |
| Residence permit | Usually | Often accepted where it carries a photo and expiry |
| Student or work ID | No | Not government issued |
| Expired document | No | Rejected automatically |
| Photocopy or photo of a photo | No | Security features cannot be verified |
Requirements for the image itself:
- Currently valid, not expired
- All four corners visible with a margin of background around the document
- Text readable without zooming — check the smallest line
- No glare across the photo, hologram or machine-readable zone
- Colour, not greyscale; no filters or edits
- Both sides if the document is a card
- Original capture or scan, not a screenshot
Class 2: Selfie and liveness
The selfie is not a separate upload but a live camera step inside the flow. It exists because a static photo can be faked; liveness detection asks you to move so the system knows it is looking at a person.
- Good, even lighting on your face — avoid a bright window behind you
- No hat, sunglasses, mask or heavy filter
- Plain background, camera at eye level
- Follow the on-screen prompts (turn, blink, hold still) — they are the liveness check working normally
- Use the live capture rather than uploading an existing photo — uploads are frequently refused
- Look like your ID photo: glasses on or off to match, if practical
Class 3: Proof of address
Requested when jurisdiction needs confirming — typically after logins from unexpected countries or VPN patterns. See supported countries for why this matters.
| Feature | Generally accepted | Common condition |
|---|---|---|
| Utility bill (electricity, gas, water) | Yes | Dated within about 3 months |
| Bank or credit card statement | Yes | Full statement PDF, not a transaction screenshot |
| Council or local tax bill | Yes | Current period |
| Government correspondence | Usually | Official letterhead required |
| Internet or landline bill | Usually | Some operators exclude telecoms |
| Mobile phone bill | No | Commonly excluded |
| Handwritten or self-generated letter | No | Not independently verifiable |
| Document in another person's name | No | Must match the account holder |
The document should show your full name matching account and ID, your full address, a visible issue date inside the accepted window, the issuer's name or logo, and the complete page including headers and footers.
Class 4: Source of funds
Requested for large or unusual volumes rather than identity. Because Duel.com is crypto-only, the evidence is different from a fiat casino's:
| Document | Purpose |
|---|---|
| Exchange account statement or trade history | Shows you bought the crypto, in your name, before depositing |
| On-chain transaction history (TXIDs) | Links your exchange withdrawal to the wallet that deposited on Duel.com |
| Wallet ownership proof | Confirms you control the sending address |
| Bank statements | Show the fiat that funded the exchange purchase |
| Payslips or employment letter | Establish income consistent with your volume |
| Sale or investment records | Explain a one-off large sum |
Full guidance, including how to present a crypto trail: source of funds requests.
What gets rejected, and why
- Blurry, dark or glare-affected images — the automated reader fails
- Cropped corners or edges cut off
- Expired ID, or address proof older than the accepted window
- Name, date of birth or country differing from account details
- Screenshot of a document, or a photo of a photo
- Edited, filtered or rotated files — metadata changes can themselves trigger a fail
- Address document in someone else's name
- Mobile phone bills, where excluded by policy
- Uploaded selfie where a live capture was required
If a submission has already been refused, verification rejected explains how to diagnose the specific cause and resubmit once, properly.
Preparing well
Read exactly what has been asked for
Requests are specific. Sending extra documents rarely helps and sending the wrong class restarts the process.
Align your account details with your ID first
Name spelling, date of birth and country. Mismatches are the leading cause of rejection and must be fixed on the account side — never by editing a document.
Photograph in daylight on a dark, plain surface
Flash creates glare on holograms. Natural light does not. Hold the phone parallel to the document.
Zoom in before uploading
If you cannot read the smallest text on your photo, neither can the automated checker.
Submit everything in one go
Partial submissions queue separately and multiply the wait. Timelines: how long verification takes.
Keep a dated note of what you sent
So you can see exactly what was submitted if a follow-up arrives.
Privacy and where your documents go
Duel.com's privacy terms state that KYC documents are stored securely with access restricted to authorised staff. Checkin.com processes the capture as Duel.com's provider. That is a normal arrangement — but the operator is offshore (Anjouan licence), so you rely on its terms rather than a strong local regulator. Once the account is closed you can ask what is held and request deletion; see account data requests.
When to contact support
Contact support when the request is ambiguous about which document it wants, when the document you hold is unusual (a residence permit, a non-Latin-script ID, a recently changed name), or when the flow refuses a document you believe qualifies. Use the 24/7 live chat or support@duel.com, and include your registered email or username, the date of the request, the document type you intend to send (do not attach it), your country of residence, and the exact wording of any rejection. Asking first costs minutes; guessing wrong costs a full review cycle.
Summary
Duel.com verification, when it happens, wants a government photo ID plus a live selfie through Checkin.com; proof of address is added for jurisdiction questions and source-of-funds evidence for large volumes. A passport is the safest ID, a bank statement the safest address proof. Match your account details to your documents, capture in daylight with every corner visible, use the live selfie, and submit the full requested set once through the in-app flow — never by email.
Frequently asked questions
What documents does Duel.com ask for in verification?
Typically a government photo ID (passport, national ID card or driving licence) plus a live selfie, captured through the Checkin.com flow. Proof of address — a utility bill or bank statement within about three months — is added when jurisdiction is in question. Source-of-funds evidence is requested only for large or unusual volumes.
Can I verify on Duel.com with a driving licence?
Usually yes, where it is a government-issued photo licence and both sides are captured. Passports are the most universally accepted because they are standardised internationally. Where a licence lacks an address or has a non-standard format, a passport avoids ambiguity.
What counts as proof of address?
Typically a utility bill, bank or credit card statement, council or local tax document, or government correspondence — dated within about three months and showing your full name and address matching your account. Mobile phone bills are often excluded.
Can I use a digital or online statement?
Usually yes, if it is the official PDF from the provider showing their branding, your name, your address and the date. Screenshots of an app's dashboard are commonly refused because they lack those elements.
What if my documents are in another language?
Government-issued documents in common languages are usually processed without difficulty; Checkin.com supports documents from most countries. For less common languages a certified translation may be requested. Ask support before paying for a translation you may not need.
Duel.help Research Desk
Payments, verification & compliance research
The research desk focuses on deposits, withdrawals, verification flows, jurisdictional availability and the operational side of crypto casinos.
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Independent and unaffiliated with Duel.com. Read our editorial policy to see how these guides are researched and reviewed.
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Verification · 6 articles
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