Campeonbet confiscated 3.5K€ of my winnings

Campeonbet confiscated 3.5K€ of my winnings because they claimed that I breached a number of T&C that they copied and pasted from their website. These claims imply VPN use, bonus abuse, fraudulent documents, cheating, duplicate accounts, etc. When I asked them to be more specific while also providing proof about what exactly I breached, they refused to respond and just told me that their decision was final. I haven't even used a bonus on their website yet somehow it's part of their claims.

Hi, I'll try to help you. Give me your registered account E-mail address. Thanks!

Hello, I've sent you my personal infos in a private message. Thank you, hamgz

I received the email address in a personal message.

The casino was added to the blacklist.

I also wrote to the casino representative, and we are waiting for a response.

I hope they'll give some explanations at least because I've tried a lot of times, but they keep saying their robotic response "Sorry but the decision is final".