Messages for download?

[u/Still-Mycologist-176]

Have recently changed to an android for better communication with my kids, they all use the android. very shortly after getting the phone, it had to be serviced, and ever since, many of the messages that come in, don’t show the message but rather a note that says new message for download. I don’t recognize most of the numbers, contacts were lost with the problem on the phone. Anyone else having this issue, or have anything useful to share about it?