*****ed via easy pay

Hi, I received a call from a ********* posing as a nedbank employee,this ********* prompted me to pay R1000 into an easy pay account. I called nedbank and reported the ***** well within 24 hrs as the funds have not been paid yet , nedbank informed me that the funds cannot be reversed and will be paid to the *********. As much as a case has been opened pending the investigation and my card block my money is lost and nedbank cannot assist me at all .i believe that there should be mechanisms in place whereby transactions can be reversed if reported timeously.i have heard that other banks are able to reverse transactions but unfortunately nedbank cannot which leaves many question marks about the facilities at nedbank.