Disgusted dstv customer

Twice I have been overcharged for my monthly subsciption and once for my funeral insurance policy. I have tried to call an agent waiting 10 minutes only for my call to be dropped. I spoke witj an agent a few months ago after the first overcharge and was assured that it would be sorted out but nothing happened then today again I was overcharged. I am disgusted with this treatment and am thinking of changing to ovhd and will go so far as putting my complaint on social media and the local newspaper. Another South African business that feels nothing for their clients. I am a pensioner and cannot afford to pay double for any product then get treated with contempt.