Vodacom Service Disgusts Me

Recently I Upgraded one of my vodacom Accounts It So Happened to be my daughters number who is 17 years old firstly the Upgrade was to geive and Additional 500mb data per month This occured in the first month and not in the second month causing me to call in and dispute this The Process took in excess of 30 Minutes At the same time my daughter told me that she suddenly had 10 gig Data and at the end of the month she had used 4gig and the balanace of 6 gig was gone I found this weird I contacted vodacom who told me this was promotional data and this expires I was not informed at the time of the upgraded that this in fact would happen and that i should utilise this data , Else i would have informed my daughter the same They then said that they would investigate the original call and get back to me Well this is a week ago so i called back Conveniently they have no record of this enquiry