shocking custome rservice and No feedback

On Mon 28-9 @10:55 I purchased data bundle of 250 mb in error 20 gb was purchased and my acc debited with R999.00 I called the call centre who conf the trans reflects on there side and that I should switch off my data until the trans is reversed which will take 48 hours then Samuel marema msg me to say they cannot see the data on there side and the query was closed on fri only. I had to call Vodacom the whole week to follow up at least 4 times a day as well as explaining the query each time, and spending =/- 40 mins on the line with no joy and empty promises. So yesterday I spoke to Anita who conf the transaction doesn't show on there side and that I must call my bank to cancel the transaction and should switch my data on . which I did only to realise when checking my balances that the 20 gb is still on my account. NOW VERY FURIOUS I CALLED THE CALL CENTRE ONLY TO BE TOLD THEY CANNOT ASSIST AS ITS A BACK OFFICE FUNCTION AND ALL THEY CAN DO IS E MAIL . Then I get another msg today from Samuel to say the matter is referred to advanced technical support and later today another msg to say they still busy from Simon Maleho. So from MON MY PHONE HAS BEEN INACTIVE AND Im still waiting