Incorrect Billing - To be corrected with immediate effect! Bad Service!

I received a bill that month an I was charged for a fibre line that was never active! We told them to cancel the telkom subscription for this line as we had bought a Telkom mobile router instead. Woodland Telkom said the fibre line had been cancelled, which obviously was a lie... How can Telkom charge us for a fibre line that was never working in the first place? I find this very sneaky and in fact this is not legal! I want this fibre charge removed from my account with immediate effect! If we are billed at the end of this month for a line that was supposed to be cancelled weeks ago, I will be taking this further as this is not legal!

Kurt Hulley ***