Cell C does not honour contractual agreement

I had a cell c data contract for R99 pm that expired on 15/02/2015. I informed them last year that I will not be renewing the contract as there is never any signal and the service really really sucks. They tried to force me to keep the contract for another month which was completely unacceptable as they were well aware that I had no intention to continue with the contract. <br> <br> The services were terminated as at the expiry date, however, they have now sent me a bill for R266! I have informed them that they have billed me incorrectly as my contract was for R99. How is it possible that in the final month of my contract where we only had the services for half of the month that the bill is more than double the contracted monthly payment??<br> <br> I have asked cell c to correct this and provide me with a bill for the correct amount of R49.5, in stead they sent the very same bill of R266. <br> <br> This is intentional and qualifies as ******ion as they know that if the invoiced amount is not paid by the due date they will adversely affect my credit record. If I pay the amount I will then be forced to wait for months for a refund.I don't advise anyone to join cell c.<br>