Text code needed to log onto account

I have had this problem for months!  I have always been able to log in to my account.  But starting a few months ago, I get a security page that says "Let's double-check that its really you".  So it asks where to send my code.  I check my phone number.  And a code never comes.

I have called AT&T several times about this.They reset my password, but that does nothing to help me.  I've checked my settings and all seems fine.  Any other place that needs to send a verification code comes through just fine.

I have tried with different computers, different browsers, using the AT&T app, etc.  It all re-directs me to the"lets check if it is you.." screen, and I do not get a text message with a code.

I cannot pay my bill online.  I cannot see my account online.

Please fix this.