Locked out of bellsouth email

My email logged itself out on all devices and now wants to text a code to a cell phone to log back on. The cell phone it’s trying to text is my daughter’s (who was never part of the account to begin with, just a number on our former cell plan service with AT&T. In the past, verification texted to my cell phone. I have no idea why the system randomly switched it to hers today.). Now, I’m caught in an endless loop and can’t access my email because the code isn’t actually texting to her phone. I cleared the cache and it took me to the password prompt once. I logged back in and it worked until I tried to set email back up on my iPad. Now, it logged me back out of the computer and says my password is wrong (it’s not). When I try to reset, it says it’s texting a code again to my daughter’s phone. It doesn’t actually send the code so I’m stuck in an endless loop. We had AT&T for internet, phone, tv and cell service for over 20 years and customer support is saying there isn’t much they can do to get me into my email other than mailing a code to my old address where I don’t live and can’t retrieve the mail (since I’m no longer a paying customer they won’t give me tech support on the email they assured me I could keep as a functioning email- we dropped them because of all the issues we had with them).