I feel you. I got permabanned from tinder when I emailed their support asking how the verification process worked with couples. They replied with a ban notice and I was confused, turns out couples profiles are against Tinders T&C. I hadn't actually done ANYTHING to violate their T&C in-app yet, just asking their support about it was enough to ban for life.
To top it off, they embedded a secret key in my iOS keychain that synced across all devices. Even wiping the phone would get new numbers banned on sign in. I ended up having to use a fresh device on a fresh iCloud account on a new number to bypass their ban (I'm a dev with 100+ devices at my disposal and multiple VPS VPNs, good luck Tinder).
Tinder can go fuck itself, but they have an absolute monopoly in my area/demographic so I have to put up with them.