KingsWin Casino insists on IBAN code for Australian bank?

I just registered on Kingswin and deposited 50 euro. AFTER the deposit, i was automaticly linked to a KYC and i had to send a photo of my passport and also a photo where they can see my face and my passport. After that, i asked support how long the verification process would take, i was told 24-72h. I didnt want to wait that long and nicely asked kingswin to close my account and pay back my deposit (50euro). I was told i couldnt close my account i had to wait for my photos to be verified because these where the "club rules". I asked where i could read anything about it being against the rules wanting to close the account and get my deposit back, the answer i got where "You need to post a letter with all your questions to the E-mail support (and that would take 24-72h to get an answer from them). So, now i am here. Due to being disrespected from there chat support from just asking simple questions. Can i get my deposit back and can you please close my account?