BILLING ERROR BUT CUSTOMERS LIABLE FOR EXORBITANT FEES

I always pay my account long before due date. Payment always reflect. I get paid on the 20th of the month and i do EFT but payment is due on the 25th. I received sms that services suspended due to non payment. Calling the contact centre the whole day and no joy. Then i was asked to submit proof of payment. Which i did and services was reconnected and now DSTV wants me to pay twice for reconnection of services but not of my fault. I called the call centre several times but still no joy. After 5 when i got home i called the call centre again and this time asked for manager and as usual non available. I told the agent i will hold and after some time got a manager and was given his word that he will investigate and also charges will be reversed and also will get confirmation via email but guess what nothing. The managers also lie to get rid of irate customers. If billing issue not resolved i will be disconnecting my services and also will ask for full refund. Agents are rude and unprofessional and dnt hestitate to cut calls.