NOT KEEPING THEIR PROMISES

I have lodged a complaint regarding Vodacom for overcharging me for something we did not agree with. Yet yesterday I got a reply from them stating that a consultant will make contact with me in due course to assist with my query. But up to now, no one consulted me. Now how can I trust Vodacom? Should my contract come to an end I will never upgrade instead I will cancel them all. I have about 4 contracts with Vodacom and surely I will not do any contract with them again. I had to migrate my contract due to their misbehavior with me. And on that migration, I've been charged 767.00. I don't know why such a huge amount of money. Other networks do not have a migration fee since they understand that customers have a right to migrate. Vodacom does not treat me well