It's Xfinity mobile and can send and receive SMS from short codes including my banks, Amazon, etc. Also, I cannot use my mailing address for precisely the reas

It's Xfinity mobile and can send and receive SMS from short codes including my banks, Amazon, etc. Also, I cannot use my mailing address for precisely the reason that I wanted to set up a web account: my accountant put the wrong city and zip code on all my tax returns (several EIN/TINs), and the IRS uses the address on the most recent filing for verification purposes.