Refuses to Follow Customer Instruction

I was called by a company which offered me a platinum card. I assented to the purchase but then realised that I could not afford it. I contacted the company and because of banking policy, I was told to have my two banks, Standard Bank and ABSA, reverse the transactions. <br> <br> Upon request, Standard Bank immediately reversed the transaction pertaining to my account with them. However, even though I've been begging ABSA to do so for a month now, they've still not done so. While my bank statement from them clearly reflects the withdrawal, the greatest response I've gotten from them was an SMS stating that nothing need be done as money was never debited from my account. The 40 day period for reversal of the transaction is nearly up. I'm about to lose the money.