Recently my phone stopped being able to send messages to one contact. I was able to send a message just fine yesterday morning, then it all of a sudden stopped and I haven't been able to get a message through since. What's weird is I can receive texts from this contact and can also call them. But SMS texts will not go through at all. I'm not having this problem with any other contacts.
I've tried restarting my phone, checking for updates, clearing the cache in messages, and even updating the phone number to add a "1" at the beginning with no success. Any suggestions?