Verification delayed despite submitting all requested documents

Hello. I registered at this casino on April 21st. I took the deposit bonus, which wasn't sticky, won with my own money, canceled the bonus, and withdrew $527. They eventually asked me for verification. I uploaded my passport and a selfie, and it was approved quickly, but I couldn't process the withdrawal because they were asking for verification. The chat is constantly out of touch. I emailed them, and they replied that verification wasn't complete and would require up to 14 days. I emailed them after 14 days, and they asked for a bank statement and said I'd have to wait another 14 days. 30 days have passed, and they're still telling me to wait, with no timeframe. As of today, I'm 55 days into the wait. It feels like they're simply delaying the payment. I'm asking the forum administration to help me expedite the entire process. Thank you very much in advance.