Unauthorised Duplication of Transaction on my Debit and Credit Card and no assistance from ABSA to resolve this

I spoke to the ***** department on the 5th of April and they referred me to log a call with the dispute department. Which I did, and then also phoned debit card department as well as credit card department which non of these two departments can assist and refers to me to each other all the time.

On Sunday the 31st of March I paid a Torga Optical with my creditcard which is linked to my cheque account the amount of R2423.25. The lady gave me a slip and I also received my email notificaiton from ABSA that confirmed the amount was deducted from my cheque account. On the 5th of April I wanted to use my credit card and picked up that the transaction for Torga Optical was also captured on my credit card on the 4th of April. I then double checked both my credit card as well as cheque account and confirmed the amount was subtracted from both accounts different dates. Why was this amount deducted from my credit card again on the 4th of April it was already deducted from my cheque account on the 31st of March?

How many phone calls made to ABSA how many emails and still no feedback from Dispute department which are suppose to resolve this?