Over-billing and Arrogant and Poor Customer Service by Vodacom!

I've been over-billed by Vodacom on my contract and Vodacom has been arrogant and unwilling to constructively engage with me on this issue. This dispute has gone on for almost a year now. In that year I've been to the store numerous times, I've called their cancellation and subscriber collections departments numerous times and the matter remans unresolved. I've refused to pay an account that is incorrectly billed and Vodacom has referred my account to debt collectors. The Vodacom personnel at the Vodacom shop at Eikastad Mall in Stellenbosch and others on their cancellation departments have agreed with me that I've been over-billed. When the matter is escalated, the response comes back after few weeks (and not within the timeframe I'm promised and only after I follow up). And the response is always from an automated email address stating that the term dates are correct and that's it. No one has engaged with me. This is the second time I've had an issue with Vodacom and again I'm left with posting a review here in order to have the matter resolved. Poor service! Never again am I taking a contract with Vodacom and soon as this matter is resolved, I'm even going to move my pre-paid service onto another network. Account number: I***