Cancellations

I sent through a request to cancel my contracts with Telkom 2 months ago and still my debits are running and contracts still active. When I purchased the phones, there was no network in my area. I went back to the salesman that assisted me with my phones and he said that there's nothing he can do about it. I let my contracts run for 2 years without using them most of the time as I had a problem with the network in my area. When I requested cancellation 2 months ago I saw there was an option for cancellation if poor network in your area. Had I known this I would not have paid these 2 years. Now that I want to cancel I get no response what so ever. Pathetic service. I would like to be reimbursed with these 2 years of paying for nothing and your ****py service.