Failing to refund Customer

I attempted to purchase pre-paid electricity on the 01/10/2015 via cellphone banking' the first attempt was met with an error message (some GI8900 error) claiming the session had timed out. I though fine' I will try again later, 2 hours later I attempt again and this time get a message saying the purchase was successfull and that the sms with the voucher number will follow shortly. I wait for about 30 minutes and no sms. I check my bank balance and discover that the amount had been deducted twice! . . So naturally I call the department to ask them to reverse it (seeing that it was standard bank's system error). After 40 minutes of hanging on and the cellphone banking department trying to transfer me to Autoserve without success I eventually get throught to consultant by the name of Samuel who was very willing to helpand advised me that he had corrected the issue and that the one payment would be reversed and show in my account within 24 to 48 hours. I was annoyed at the issue but relieved to hear this. <br> I was told in a seprerate call' same day that it was being handled in the back office. To date I am still waiting and extremely dissapointed in the way I've been treated.