Bad Service for LONG standing customer

Terrible service, no follow up. Vodacom phoned me and changed my contract, promising me i would be paying less a month, double the data, and I ended up paying R 1200 more at the end of the month. The people who continually call and harass you are a bunch of ****s, and when you log a call and complaint and they promise to give you feedback, guess again, nothing happens. I have been with Vodacom for over 20 years, will be moving all my contracts over forthwith! Unprofessional and Unacceptable.