Horrible Service

Horrible Service, relocated to a new house that already had a fibre line and ONT installed. I contacted Cell C to get my service transferred to the new address and 21 days later i'm still being given the same story that there's an active service on the line. I've went so far as to get the previous owners contact details and she confirmed that she had cancelled her service with her ISP and even sent Cell C a copy of the cancellation order. I find it absolutely unnaceptable that I have to pay for a service that I have not been using for almost a full month now.