I have a work friend who I recently got their cell phone number but when I went to text them a message came up on my phone saying it couldn't be delivered. I tried sending it again and the same thing happened. After that I deleted their contact info and re entered the number to see if it would help. But after doing that things still did not work.
I happen to have another work friend who also texts the same person. I checked with them to see if their messages were going through and they said the number was working for them. The phone this person uses is an android.
I can text any other contact on my phone and the messages will send without a problem this is the only one I seem to not be able to use.
If anyone has some suggestions on how I can fix this then please let me know.