Hey a few weeks ago I sent a text to my studio mate someone that I text on a regular basis. The next day I tried to send her a text and my phone came back with text message failure to send and asked me if I would like to try again. After several failed attempts. I called her to ask if she was having the same issue. Thankfully the call went through and sure enough she was having the same issue. I find it funny that all of a sudden this happens and I have not been able to text he since. I have not blocked her number, she has not blocked mine. I have deleted the text thread and her contact info and tried sending a text with the 10 digit number, still no luck. I have even tried the *228. Then my Samsung galaxy note three tells me that there was a Sim card activated for my number and updated my romping information. Please help!