Worst service use an alternate network

Pathetic service I have been with vodacom for over 2 years I have the red unlimited plan I was calling to downgrade my contract the agent told me the incorrect amounts processed a cancelation and deducted me 3times more than what was told I was deducted ober 11000 when calling in for a supervisor I was told hold on and continued to be transferred eventually I was called and told I will be contacted 2 weeks later nothing easy to deduct never available to help i have told everyone I know about the service and will be posting it on social media i understand service is both ways but at least provide me with a service they have not even acknowledged my complaint.