Vodacom

Took a contract for 10 a month with Vodacom last year being charged 300 extra when called the call centre to speak to someone I am being given a hard time, when asked about a refund they don't want to say anything I've asked for the previous recording from last year and till date no response. I have been a Vodacom customer for the longest time ever and the service is terrible when it comes to queries I have left my number for the team manager to contact me and no one has contacted me