This sucks, I hope you can somehow reach Apple and get them to unfuck your account.

My own experience with big tech account bans was much milder, so I learned my lesson without much pain. I got a "free Azure credit to learn cloud computing" email from MS, redeemed the credit, created a VM, started clicking around the settings and got locked out. Raised a support ticket, asked what I did wrong, told my account was flagged for suspicious activity. I asked what I did wrong again and got a reply that my case had been reviewed by a human and that my Azure account wouldn't be reactivated. Thankfully, my primary MS account didn't get banned for that.

Conclusion #1: it's frankly insane that a big tech company can fully terminate your account with no means of recourse. People like to mock the EU and its lawfare, but I think it is the best candidate to force the tech firms to implement some sort of firewall between their various services, so they can't terminate your access without prior notice or without compensation.

Conclusion #2: those who are reading this, don't put all your eggs into one basket and teach your friends and relatives to do so as well. That is, if you have to use the services of various big tech companies, spread them around. Have a boring account with one company that you use for free stuff, a boring account with another company that you use for paid services (if you can purchase services X and Y from two different companies, do so), a boring account with a third company that you use for getting paid, a fourth account that you use for shitposting and getting into arguments with internet strangers.