MTN THE WORST ACCOUNTS DEPARTMENT IN SOUTH AFRICA

My Nashua Contract was transferred in November 2014, unfortunately as Nashua accounts dept. were very efficient, to Mtn. ONLY the first billing was correct ever since then there have been OVERCHARGES, EVERY MONTH and despite NUMEROUS queries both telephonically and in person at the outlets in Musgrave Pavillion shopping centres, this is still on-going. EVERY MONTH, now the latest is that I am being charged for data loading. I have all my reference numbers, dates, contact names etc. I am 71, a widow and this is sooooo STRESSFUL for me I am at a loss as to what next to do. I tried sending email to the ombudsman with NO SUCCESS.