Ignored by Vodacom completely

Vodacom I am extremely disappointed in you. Ticket *** I've had lengthy conversations with three of your staff over as many months regarding you charging me more than what you have quoted. They all promised to get back to me and none of them did. What kind of business are you that overcharges your customers and then just ignore all my attempts at resolving this issue. You may take R960 of mine that doesn't belong to you now, but I will never, and neither will any of my family ever take out a contract with you ever again, and you will lose far more than R960. Shame on you. I have never experienced such disgusting and ********* service in my entire life.