1xBet – Withdarwal authorization error

I won in 1xbet app when I won money in this app. I wanna withdrawal money I can open the withdrawal page first display a msg authorization error then I will contact with security then they asked me give me id card pic I will gave hat then say id card with write date I will take that after that say make a selfie I will provide that after that they will blocked my account . given a reason u have multiple account if the prove me I have multiple account I will payout a big fine. the app is scam they not give you big winning. If they have verification issue then why they not verified account at the begin.