Hey all, have any of you had an issue where you were unable to send someone a text? I was in the middle of a conversation yesterday then suddenly I couldn't send them any texts. I can receive theirs and I can even send a MMS but SMS won't go through. I just get "Sending..." Then an "unable to send, tap to try again" message. It only affects this 1 contact and only for outgoing SMS. I've restarted my phone, force closed the message app, cleared the cache for the app, deleted the previous conversation and nothing...