Contract Expired

I called in in December to advise my contract has expired and i would like to cancel it. I was told to send an e-mail to the cancellations department which i did twice. I get a call to tell me that my contract is due for an upgrade and I then tell the agent I sent through a request to have it cancelled. Her response was that she cant help me I must phone cancellations. So I phone cancellations and speak to Loluthando who advises there is no case on file so she cant help me and I must go into the store. I then told her I am not going into the store because I was told I could do it by e-mail. She tells me I have to go into the store because she cant help me. I ask to speak to a Manager and her response is \ my manager has not come in yet (10:10am) and she does not know if any other manager will want to speak to me. All I want to do is cancel my contract, Telkom has no network coverage and I have had endless problems with your network"