Delaying verification process and therefore payout

New account and won some money not a lot but wanted to check what their withdrawal process was like. Done the verification including facial recognition and was verified. Went to withdraw to same method days later it was declined as they said my bank wouldn't accept payment and to try another card with different bank. So I did. This time Visa debit. And same thing happened days late received email saying they can't pay and I would need to send bank details for a bank transfer. I sent all documents through and after days long waits for emails they keep saying to send bank statements and verification of what I've already sent. I have asked them to be more specific if there was a problem but it just continues. It's been well over 8 days now. Chats and emails say same thing but won't say exactly what is the problem. I have screenshots of emails and chats.