My data had stopped working after i went to Ireland for a few days. I rang 789 and they asked me to turn the phone off, take the sim card out, wipe it with a soft cloth and put it back in again. Since doing this, the sim card is not working - I am getting the "no sim card - emergency calls only" message. I've taken the sim card out and put it back in several times. I've tried another sim card in my phone and that seemed to work fine. I can't call the helpline as my phone isn't working.