Vodacom - don't believe anything they say!

Never believe what you get promised by Vodacom! After receiving a call to migrate my package to better suit my needs for a slight reduction in my contract fee, this months invoice is R180.00 more. I have spent hours on various calls to try and get this resolved to then be told today - we will migrate you back to your original package, but only from next month! How can this be allowed by Vodacom - oh no sorry it is their 3rd party???? What happened to calls being recorded and customers being first!