I can't send or receive texts either. iMessage (over wifi) fine.
Checked on Twitter, EE are having data and text problems across the network.
I have been unable to send or receive texts reliably for ages (weeks). How was the problem resolved, what is the detail? Should I call the help desk? I did try that a number of times but maybe you have hit on the magic bullet that they were unable to find. Please let us knoe the low-down.
Came back to life for me shortly after posting the above. EE network problems. You may be in a cell area that is still affected.