888 — player complaint #63621, 2020-06-08: account blocks

I have recently open an account with 888casino with following details: [EDIT] I have received welcome bonus and have completed all wagering requirements. After that I have won over 800£. I have requested founds to be withdrawn and get withdrawal confirmation. Next day I have received request to upload my documents for verification. I have uploaded pictures of my UK driving licence which is registered in the same name and address as my account with 888casino. Following day I have received email from they operation team saying that my account was closed due to failing security checks. They haven’t include any details or explain why these checks were unsuccessful. I have contacted their operation team but never get any reply. Their online chat is not available neither customer service number. I have read the reviews on internet and it seems to be usual way for this casinos to treat people this way. I do feel that only thing I did wrong was winning money and they try to use excuses and not pay me my winnings. Are you able to help here? Regards,