******** Vodacom Billing

Vodacom has repeatedly messed up the billing on my account and now, when my account came up for renewal, they tacked on an extra 5 months before it can be upgraded. Having spent about 8 hours on the phone with various people, they requested 'evidence' which I have sent 5 times. ALL Vodacom email addresses keep bounding. And as time goes on, Vodacom keeps *******ly billing me. I am exhausted, fed up and angry. I am MOST angry that I have tied myself in to another 5 years with Vodacom.