Incorrect billing and always suspending my service.

Multichoice is billing me R20 for insurance decoder as R200 i as call them to resolve the issue but their differents consultants they always tell me different stories. The other one consultant even gave me his email but he dont respond to my emails all they do is suspend my service saying my account is overdue and i always pay. I am sick and tired of calling them for one thing i can not be billed R200 instead of R20 for decoder insurance the only amount that i have to pay is R385 per month but they expect me to pay more than R500 and end up disconneting my service and i have to call them to reinstate my service bt after some days they disconnect again. So i am fed up as they can not help me the only thing they just promise me that they will speak to the insurance department but they dont i am always spending my money buying airtime calling them but no help at the end of the day even nowy account is saying i have to pay R547 instead of R385 for next month i am very disappointes with Dstv Multichoice and their consultants full of different stories everyday.