No customer service

Vodacom handed me over after almost a year that i cancelled my contract with them due to no cellphone network in our area. I phoned them dozens of times regarding the problem and aftewards i asked them to cancell my cantract as i can not pay for somthing that i cant use and they NEVER phone me back after i leave messages or when i post on Hello Peter. I then bought a MTN simcard and since then i never had problems making or recieving phone calls and always had use of the internet. They can take the money that Vodocam says i owe them and shove it!!!!!