Mtn deductions every month??

My wife and I are state pensioners and we try and keep our 2 cell phones topped up with R10.00 each in the event of and emergency and in case we need to a contact family member urgently. We are having the balances left in our phone taken off every month end and leaving us with a zero balance..<br> <br> We have tried the customer services no. 171 without any joy and being unable to speak with a consultant. We tried a Mtn agent who suggested we come in to the shop. We told her we were pensioners and we have had our car ****** and we are unable to. She said she would get back to us. This was last month, we are still waiting.<br> <br> We have now again today our balances in our phone reduced to zero.<br> <br> Pathetic service when you mention you are pre paid.