Suspended Service, Expired Contract - But bills keep on Accumulating

Telcom's business ethics suck! Telkom suspended a service for a Smart Broadband I had several months ago as I couldn't pay for the service - Account No. 339 897 477. I called them and asked that we cancel the service as I couldn't afford it anymore and I didn't need it. I needed to scale down and cut costs. Telkom refused to do so and instead kept on sending me bills on a suspended service. Even after the contract expired, Telkom has refused to stop accruing the bills, but instead claim to be renewing the contract on a monthly basis on the service that they don't give me and haven't provided to me for over a year!