Double charge for sim and connection fee

I took out the R99 for 5GB + 15GB today at your store in Lakeside Mall. I was made aware of a sim and connection fee of R195 which they said will be debited on my next debit order. Up and above that they made me pay at the store R114 for the sim card. When I queried there why I had to pay this fee the lady there arrogantly said it is an activation fee. I asked what is the difference they could not explain properly and insisted I pay this fee otherwise I wouldn't get the contract. I called your call centre now who confirmed that what they did was incorrect and I should return to the store and get a refund. I am very disappointed at the competence and integrity of your staff at the store. I don't have time to go back and get this refund and I want a refund via EFT by close of business tomorrow otherwise will report this matter to ICASA.