I can send a text message, but I can no longer see the replies.

I've been using the Explorer+ from the time Garmin took over. I have not had many issues with the unit, but here lately I will send a text and not get a reply. I sent an email to Garmin using the Earthmate app. I did get back a text message from them. I then sent a text to my wife using the Earthmate app and she replied, but I never got the text message.