Debited for a paid off phone continously even after reporting. Nothing gets done!

The customer service with Vodacom is disgusting shame. Don't bother signing up for their products. Being debited continously for a device that was paid off 4 months ago and when I logged a request nothing gets done! Even more more got debited this month. I had a cell phone contract that I took out early this year in February /March. In September I got a early cancelation quote and the contract. Paid the outstanding balance and emailed the cancelation department like I was advised to on the phone. When I say nothing was done after I called them repeatedly!! I'm still paying for that ****** phone even after I fully settled the contract!! I called an alerted them of this error and STILL NOTHING WAS DONE. I'm continously paying for a phone that I have fully paid off. When I report the error I get promised off sort of things but STILL NOTHING IS DONE!! I'm so ****** disappointed by this service because not only do I have to pay off a phone but you now have 4 months of debit order money with no communication to myself oh a refund or to cancel my request!! Do yourself a favor don't bother with Vodacom.