Text messages from a family not received
My granddaughter sends me text messages all the time. Recently, when she sends them, they are never received on my side. We've sat next to each other to confirm the numbers are correct and I've even sent her a response message from an older message she sent. She gets mine, but nothing new comes to me. She did get a response recently from some unknown person replying to her original message to me. Again, all the phone numbers are correct.
What do you think is happening here and, more importantly, how do we get it working correctly again?
Thanks,
Tom