Beyond irritated worst service provider

<p>I just received my invoice today and yet again I am being billed the wrong amount. Last month a lady from the billing department called me and reversed the extra charges. Now this month I'm being billed wrong AGAIN. Someone do tell me is this going to be the process I have to go through every month? </p> <p> </p> <p>Once again I added insurance at the fourways crossing store and was advised it would be R151 now I'm being billed R345 for the second time...</p> <p> </p> <p>This is becoming very frustrating </p>