Hello Lynn7070, I am sorry to hear you are having issues receiving text messages. I would like to get more info in order to assist you if you are still having the same problem.
Is the issue just with receiving messages? Or are outgoing messages and calls affected as well?
One troubleshooting step you can try is performing a network reset from your phone settings.
If the problem persist, please send me your account info through a private message and I will investigate this for you. To send a private message, first click on my name "ComcastTito" and then click on "send message".