Vodacom outstanding contract payment dispute

I am currently having the worst experience with Vodacom. I canceled my contract in May , two contracts of which both I have been told are inactive , but i continue to be billed , i called Vodacom legal, collections and many other departments , some consultants are working from home so the call hangs up , when I eventually got a hold of consultant they send me from department to department as no one can assist with my dispute , a particular Nelisiwe Magasela point blank told me she can not assist ,i sent email to Vodacom customer care and they haven't responded to date, I went to Vodacom Greenstone branch they informed me they cannot help I have to call in Head office , even if I go to main branch in Midrand I might not be assisted , I should maybe settle the amount and dispute later or inform helopeter or contact ICASA which is closed at the moment. they have handed me over to VVM , who call me everyday ,but when I answer the call drops and the consultants cant assist with anything, If they check their records I'm not even using the number in question and after my contract ended they stopped debiting my account but continued to bill me for an unagreed amount. I have tried all to dispute me paying Vodacom R1000 PLUS for a cancellation they did not effect correctly. I will never subscribe to Vodacom , this is not fare.