Refund

I purchased R500 pay as you go on the 9th of October at the Sandton station. However when I checked my bank statement a couple of days later I noticed that the money was deducted from my account twice. I then went to query this at the Centurion station and was told I need to complete a refund form and return with all the relevant documentation. I did this and was then told it would take 7 to 14 working days before the money would be refunded into my account.... that was three weeks ago!!!!! I then also sent through an email and was told that it is the bank's fault and that I need to sort this out with them. I am now totally frustrated with this back and forth and would like this money refunded back into my account immediately!!!! I have sent through the documentation AGAIN to a Janine and I spoke to a Shakira. I really need this matter sorted out as a matter of urgency!!!!