Incorrect Billing / Terrible Service

I had cancelled my account in the beginning of last year. Vodacom invoice me in august and September... 6 months later and are now sending me Final demand letters and my account is handed over to legal. First: why am I being invoiced when my account had been cancelled.

Then I'm asked to contact the accounts department. I do and they can't help and transfer me to cancellation department and they say they can't help and ask me to call legal who say that they can't help and want the to contact customer care who ultimately also say that THEY CANT HELP!!

So who can help me solve this because no one on Vodacom are able to see the history of my account and my invoices to give me any clarity on what's going on.

This is terribly frustrating and is not my first experience with their incompetence. I need assistance with understanding what's going on.

Regards S Singh ********** 400