CELL C - NEVER CANCELLED MY REQUEST BACK IN 2015

My 2 year contract expired back in 2015 already, where I sent an email to Cell C and called numerous times to cancel my contract. An email was sent back in 2015 and have been trying to cancel ever since.

Currently in 2018 (3 years have passed) and which I've been billed R40/R80/70 every other month. The contract officially got cancelled in September 2018, just to receive a bill of R1700. I do not have the phone or sim card - it was a gift for a relative. I've queried this and they opened a case to dispute it, after following up they said it is still under investigation. On the 12th Nov, I received an sms stating I've been handed over. I called again, and spoke to customer care, accounts department and legal department and each one chuffs me from one department to another.

Cell C - should sort out their admin. My contract ended in 2015, I've cancelled and it was not processed on their side. Im getting a bad credit record because I've been handed over. This is RIDICULOUS !! I want this to be resolved immediately!!

How can I be paying for something I never used? How is it my fault your department does not cancel contracts when they asked to do so???