Itimesed Billing

I had my cell phone ****** 30/05/2015 and i could only get a reference number on 17/06/2015. Put in a an issurance claim whereby i only managed to get the phone replaced after two months and 3 weeks,<br> On the 21st of July after the phone was online i had no airtime and then o called mtn helpdesk where i was told that my simcard has been in use and the last call was made on 2nd of July. Was the service not supposed to be suspended when i reported the phone that it was stole - that's my first query. I have asked for itemised billing which i have not received as well.<br> <br> Im really disappointed with mtn.