Support issue along with very inadequate customer service.

I have been having an issue with my line to where I get an, "Invalid US Number" error on multiple authentication sources. I am also unable to actually receive any kind of 2 factor authentication. This is very frustrating to deal with. On top of that, I sat on the phone for 42 minutes in-between hold sessions with 2 different support agents. This is ridiculous. I did not get my issue resolved and after getting transferred with no communication between the transfers, I was then hung up on. I am paying for a service and I expect adequate customer service as well as a working mobile line.