United Kingdom:Site listed by regulatorThe regulator publishes this exact domain in its register (domain data is operator-supplied to the regulator).
Market
Evidence
Records
Denmark
Site listed by regulatorcasino: Licence holder approved for this productsportsbook: Licence holder approved for this product
3 records
Malta
Licence holder confirmedcasino: Licence holder approved for this productpoker: Licence holder approved for this productsportsbook: Licence holder approved for this product
4 records
Ontario (Canada)
Site listed by regulatorcasino: Site listed by regulator for this productsportsbook: Licence holder approved for this product
3 records
Sweden
Licence holder confirmedcasino: Licence holder approved for this productsportsbook: Licence holder approved for this product
3 records
United Kingdom
Site listed by regulatorbingo: Licence holder approved for this productcasino: Licence holder approved for this productsportsbook: Licence holder approved for this product
4 records
Payments
Operator's own pages and curated review sources
Cards
Mastercard · Visa
MastercardDeposit
VisaDeposit
E-wallets
PayPal
PaPayPalDeposit
Bank and open banking
Bank Transfer
BaBank TransferDeposit
Other
Paysafecard
PaPaysafecardDeposit
Limits are set in the operator's cashier and are not published.
AskGamblersAggregator rating7/10source · as of 9 October 2026
LCB.orgCommunity sentiment2.8/5 from LCB members; 31% said "OK"source · as of 14 October 2026
LCB.orgAggregator rating2.8/5 (LCB review)source · as of 14 October 2026
What players report
External Reputation Signal · Trustpilot / community
External review signal: high concernTrustpilot 2.2/5 (1430 reviews) · Poor player score - caution
Caution: 21.co.uk scores 2.2 out of 5 on Trustpilot (1,430 reviews). The systematic pattern is accounts thrown 'under review' the moment you withdraw, with drip-fed document demands stretching weeks. Verify fully and early so a payout doesn't trigger a review, keep records, and use IBAS/UKGC recourse if a legitimate withdrawal is stalled.
External reputation signal from third-party player reviews — not a SlotAff safety verdict, Trust score or licence assessment. Player claims are reports, not verified facts.
Common complaints
Accounts placed 'under review' immediately on withdrawal; waits of weeks-to-months
Repetitive document requests drip-fed 'every other day' rather than all at once
Locked out / can't view balance during verification
Replies to 100% of negatives but rarely resolves the underlying issue
Yes. 21 Casino holds an active UK Gambling Commission licence (reference 039198-R-319450-029), verified against the official register.
What payment methods does 21 Casino accept?
Research on the operator's own pages found 5 methods, including Visa, Mastercard, PayPal, Paysafecard, Bank Transfer.
How long do withdrawals take at 21 Casino?
SlotAff has no moderated withdrawal reports for 21 Casino yet. The operator's own payout claims are recorded during research but are never treated as evidence — a signed-in player can submit the first report.
How we check
Research method and coverage · last checked 15 October 2026
Confirmed from a source5
Licence status confirmed by UK Gambling Commission
Legal entity / ownership on file
5 payment methods documented
Game/platform providers identified
Market availability researched for 5 markets
Not established1
No current offer researched
A gap here is a gap in our research, not a finding about the operator. We publish a fact only when a source we can name supports it, and we say so plainly when one does not exist.
