UNABLE TO MAKE CALLS

Hello Peter. Following my cellphone upgrade earlier this year with Autopage, I haven't been receiving good service but frustration with the company. I'm unable to make or receive calls since March/April 2015. Other services are fine like internet which allows me access to emails and social networks as well as SMS but no calls at all. Kobus from Mahikeng Autopage tried his best to help me on more than 5 occasions by contacting the head office but no help came through. I even did a sim swap which cost me R160.00 but still no calls could me made or received on my phone. I contacted the call centre myself more than 3 times to get this problem solved, with all the codes provided by call centre consultants still my problem was not solved. My account is up to date. Can Autopage solve this problem or cancel my contract as first of all I was handed over to them without consultation by Nashua Mobile following the closure of that company?