Winnings confiscated without a given reason
I created an account for DuxCasino on the 17th of March 2022. I made a deposit of 60€ and used a 100% deposit bonus. After carefully playing the games allowed by the bonus terms with the accepted bet amounts I was able to win 4753€ after reaching the wagering requirements. After this I sent them documents such as pictures of my ID, selfie with my ID, proof of address and a screenshot of the deposit confirming it was legit. After consulting the live chat I was informed that the max withdrawal per day is 2500€ so I made a withdrawal for that amount. In the early hours of 18.3.2022 I received email that my account was successfully confirmed and that my withdrawal was accepted. Unfortunately on the morning of 18.3.2022 I received an email saying that my account was closed. From this point on it was silence from Dux casino and my emails were unanswered. In May I finally got contact and we arranged a video call through google meet for "additional verification". This video call consisted of basic questions which I of course answered truthfully. After this call I got an email stating that my remaining balance was confiscated and the decision is final. The decision seems very odd since months before my account was accepted and I was able to withdraw a part of the winnings which would indicate that there were no terms violated.
I'd like to know the reasoning behind confiscating my winnings and mainly what I'm looking for with this complaint is for me to get my remaining winnings of 2253€ that were left in my balance.