Should delete the old number as a 2FA option, then add another, while keeping authenticaror app / recovery codes / security key enabled.
Even if I did turn off 2FA on my Facebook account, the password is long and complex to the point that it's likely no one other then myself has ever used it in the past, nor will anyone other than myself ever use it in the future, for at least as long as the account exists.
If you are ever able to restore access to your account, I hope these security guidelines help.
Ideally you could have added QR code based authenticator when you removed phone number.
They say “we have no way of proving it wasnt you”
Yes you do - logged out in Canada at 1230am my time, logged in at 523am my time in CHINA, attempted log in at 8am my time in Canada.
Was hoping to find help here, but so far nothing, but I do appreciate that people are understanding, gonna keep trying to get support to answer my emails!