abuse from Cell C

Cell C is toying and tormenting me months after they terminated the ********** account they upgraded without my Consent. I have discovered that Cell C has actually taken my account to the debt collectors on then basis that i am in arrears but how so when the account was **********ly upgraded? how can I owe when the same Cell C terminated the same contract because it was **********? To make matters worse no one is willing to assist because I have been calling everyday but i am sent from pillar to post. I had to fight to have the contract cancelled and now I am fighting to clear the debt which should not have accrued in the first place. Every time they transfer me to legal department the calls gets disconnected and they don't want to give me the direct line. i even have a reference number for my case yet it has been erased on the system why? I lodged a ********** case even submitted my documents but no feedback. I am this close to exposing this social media with all the evidence I have at my disposal.