I have been having issues with texts as well. It started almost a month ago, but recently it has gotten worse. Today for example, my boss, who also has an Iphone 5, apparently sent me 4 text messages at 11:27 am. He was in a meeting in another part of our office, and I was at my desk in the same building, he came back at Noon to ask me any questions on the texts he sent. I still have not received them. I also do not receive all of the texts that my friend Bethany, who also has an Iphone 5, sends me, she sent a group text to me and my friend Brittany who I was with at the time of the text, I did not receive it, but according to Brittany's phone, I was part of the group message. She was inviting us to dinner, I never got the invite, but i did get other messages within that group text, later in the day. How can this problem be fixed?? I did not really care so much until this morning when it affected my job.