Waiting for my withdrawal 5000 EUR since last week

I made a 5000 euro withdrawal a week ago.

The casino asked me to confirm my account and I sent all the necessary documents: proof of address (my electricity bill), proof of income, evidence of my deposit at the casino, a passport photo, and my biometric data.

However, the website shows that the documents are missing, but I can't click anywhere to send them through the website. When I try to upload a photo of my passport again (I already did it last week), the website says that it's already used.

I sent all my documents to the Casino again with email. They haven't responded.

I have also contacted customer support three times by email, but I haven't received any response since 4 days ago when they just informed me that some of the documents are missing. The customer support chat is never active when I try to contact them that way.

What can I do?