Repeated incorrect extra debits on my account

I have had an MTN My Choice 100 contract for 9 months which I entered into at an agreed price of R379 per month. I have not paid the amount Autopage quoted one month since the contract commenced. Extras are debited monthly without my requesting them. How this is possible I cannot understand but I have been paying between 50 and 100 percent more each month. I have to spend more than an hour with clueless staff on the phone to correct THEIR billing mistakes each month. This process takes another 6 weeks to appear correctly on my bill so in the interim I am forced to pay their mistaken amount due or have my service terminated. This is unacceptable and I no longer wish to continue with this service. If Autopage cannot fulfill their obligation to bill me correctly for the service I have contracted into I have a good enough reason to end this ridiculous facade. AUTOPAGE CLIENTS CHECK YOUR MONTHLY BILL!!! This is the second complaint I am making against Autopage here