Contract

I went over to another service provider in November 2015. Bought myself out, my contract was supposed to expire in January 2016 anyway. Paid my dues. On 19 November 2015 a new contract was implemented on my name without my consent and without my signature. On a nr ***. I don't even know this number but I am being billed for a contract that I am not using and on which I don't even know the number of. Logged the case in January 2016 at the Montana branch, without any feedback. Case nr ***9. I logged a new case in Bloemfontein case nr. ***3. Should I get a lawyer to sort this ***** for me? Your incompetence is causing a lot of inconvenience.