Reversal of double debits

On Friday 15 April, I used my cheque card for a couple of purchases. To my surprise, these transactions went through my account a second time on Sunday 17 April. <br> After phoning and emailing, I get different answers from all people I speak to. <br> The one confirms the fault lies with ABSA and that they are rectifying it, the other blames the merchants......which is impossible. How can 4 different merchants all double the transactions???<br> The point is clear. This was not my error, nor the error of the other customers to whom this happened. Why should we need to wait for the refund. The refund should be done immediately.