Cannot text from primary account

The phone app is great! I can video call and best of all my kid can use my old phone over wifi saving me money on another phone bill. My kid can text from the additional number created for him but I cannot text from mine. Says cant find text and all COMCAST. Ive called a dozen times with no resolve and it has been a whole year. Same error message. Tried removing app, and nothing. I hope they an fix this issue otherwise its awesome!

Godsbeauty about Xfinity Connect, v6.2