APPALING CUSTOMER SERVICE DELIVERY

On upgrade of MY 3 contracts, i asked that i could have the top up packages as before. Mamutsi (the sales agent) assisted and informed me that after upgrade I had to phone in for one of my lines to set a limit, which i did for the 1 specific line as advised. However a month later i received my invoices and statement showing Packet switched data on one of the lines with R1500.00 over and above what i expected. I phoned via head office and at the time there was industrial action and i was advised Mamutsi (SP) would phone me in the following week to clarify. I WILL NOT BE PAYING for extra costs that i was not advised about. I clearly stated and asked whether it was a top up option and was told it was. Now i try and phone MTN, to the billing department and a whole hour goes by with no response. I get on the bus while holding, get home, make supper, eat ...all the times whilst still holding. How is that for customer service. Until this is rectified i'm withholding payment. I stopped my debit order and someone at MTN has the audacity to re-load it with a different referrence so that it can go through. GET YOUR ACT TOGETHER MTN . Your customer service does not exist. USELESS.