Woolies Dash Refund!

I made two purchases on the Dash app this past Saturday using my credit card, got an error saying that my card number doesn't exist yet both payments went through. I am still waiting for the funds to be reversed into my account, this after having been told by one of the consultants that the funds should reflect into my account before CoB on Monday, how many times I have to call in order to get this resolved?? ***