Querry logged on the 30th July

I am fairly disappointed by the kind of service received from mtn. On the 30th of July 2015 I went to the Benmore Branch in Sandton and they couldn't assist and they referred me to the Morningside branch. They logged a call for itemised billing on my behalf since to date I haven't received my ITB, I went back to the branch on the 14th of August and I have learned that my call was closed yet I haven't received my ITB and no communication watsoever. I have in the past weeks being calling the 808 service desk number for assistance and I have been given lots of reference numbers yet with no help and now the phone keeps on ringing and when someone picks it up it drops. I don't understand why as a paying customer I should settle for such bad service yet I pay my contract phone every month without no problems.