Premature cancelation

I am tired of bad service, incompetence and being ********** by Vodacom and want to cancel all 4 business contracts that I have with them, they have caused me to lose customers and money. When I last upgraded I was given incorrect information by numerous consultants regarding my contract and accumulated minutes (I lost 1300 minutes that I already paid for), I was **** to and mislead into signing it the current contract (was told the contract I wanted was no longer available while it still is and I have proof of this). Further I had a hassle with repairs to a new phone that took about 3 months and as per Vodacom terms and conditions the warranty is carried and repairs done by the manufacture (they are lying Vodacom repairs the phones and carry the warranty), numerous call limit issues and so on just to name a few. Now I am fed up with Vodacom's incompetence and lies and want to cancel all these contracts. I am being sent from pillar to post by Vodacom and no one is able to help or explain the quoted amount. As per the CPA you can charge a FAIR settlement amount how can Vodacom justify 100% as per my quote as fair or even 75% as per the *********** consultants, without giving me any