MTN FAILS TO RESPOND TO PROBLEMS CUSTOMER PROBLEMS

E-mail regarding itemized billing and SMS bundle charge was sent to MTN's customer care on 18/03/2015. To date I have received no response from MTN. MTN has been charging me for itemised billing that is not supposed to be on my account as I cancelled it when renewing my contract. On 17/12/2014 I sent customer services a mail about this after I failed to get through to their call centre. I took note that the incorrect service did not reflect on my March 2015 bill but I was not credited for all the previous months incorrect charges. Secondly, I have a SMS 30 bundle on my contract as well as a SMS 50 bundle. When I finish the SMS 30 data bundle I get a SMS from MTN saying that I must dial *141*2# to load more data bundles. This doesn't make sense as my MTN 50 SMSes supposed to then be available for use. I managed to get a reference number *** for this query about a week and a half ago. The call centre agent said that I can follow up in 3 days for outcome on my query. Trying to get through to your call center the whole of last week failed. Each time I'm put on hold and the call gets cut so I sent the e-mail dated 18/03/2015. MTN'S CUSTOMER SERVICE IS DISGRACEFUL.