Facebook's like that. It does all sorts of shit you probably don't want it to. Try contacting them and tell them to delete your account. I have no idea if this

Facebook's like that. It does all sorts of shit you probably don't want it to. Try contacting them and tell them to delete your account. I have no idea if this will work but it might be worth a try and in future don't link your phone number to internet accounts unless you want bullshit like that.