Doesn't every site route every support request for every reason into the digital trash can? You're supposed to just make a new account, using as many mechanisms as possible to make sure the site can't link it to your old account.
A few years ago I tried to create a separate digital footprint from scratch (just an experiment out of boredom when my isp offered a second number for free). I used an ultra cheap never before used android phone and set it up outside my home.
Google went nuts. All sorts of captchas, security checks and attempts to link me to other information popping up on every step. Eventually it wouldn’t let me use the phone unless I provided a credit card number.
Bonus: the iPad's device name is now "My iPhone" because it also synced the device name from the phone.