email stopped working

I have been unable to get email at one of my addresses for several days. I suddenly got a password request and none of my actual passwords will be accepted. I tried to fix this in my account manager, but it says I need to verify my phone number. When I try to verify, it says that number is already attached to an account (yes, I know! Mine!). So it won't let me update my phone number b/c my phone number was already in the system. But it won't let me make any changes because I haven't verified my phone number. If I try to use a different phone number, I am asked for a code. I never receive a code no matter how much I hit the "resend code" button. Something is not right here! I have tried using chat, but it also tells me to "login" but when I do it tells me to login (again!). It's like a constant loop wherever I go. 

*I don't see anything about email in the category/topic rows, so I am just choosing Xfinity App - I don't know where to go for this.