WHERE TO CANCEL TELKOM SERVICES

I have been trying to cancel our Telkom service since 13 January 2015 as we have moved and there are no lines available to relocate the service where we live now. I tried to call 10210 from my cellphone, tried from the landline at our previous address, tried on the internet with an email via the Telkom website, via Telkom facebook page and have no response anywhere. I have just tried to call 10210 again and waited for about 40 minutes with no result. I tried to call Telkom Direct Newcastle (closest shop & 120kms away), Telkom Direct Pietermaritzburg and Telkom Direct Ballito. All three numbers just ring, no-one replies, and a voice mail response tells you that your call cannot be taken and you cannot leave a message so please call back later. This is the same response that I keep on getting every time I call. PLEASE PLEASE HOW DO I CANCEL OUR SERVICE??