Unable to Withdraw & No Communication

I submitted a $5,000 withdrawal request on 12/11/21. It was rejected due to a withdrawal system upgrade. I was notified by chat support it would be completed by 1/1/22. I resubmitted it on 1/1/22. I received a Withdrawal Application email, but never received an authorization email. I sent numerous emails and waited many times in chat support. No response. I now have a $10,000 withdrawal request pending. The first withdrawal was successful on 11/6/21. I am concerned about my remaining balance.