Hi, sorry to hear about your case with Casumo.
I am in a simular spot. Being a VIP for 3+ years.
I did a “proof of wealth” back in 2017, which was all good. The same thing came a few days ago. I sent them everything like bakestatements etc, and now they want a signed statement + ID of some buddy of mines because they could see I had recieved money in august by someone. A real mess.
I dont know if it is against forum rules, but I have written alot about it at Casinomeister. Here is the link: https://www.casinomeister.com/forums/threads/are-you-a-highroller-beware-of-casumo.88806/