Macy's MACYS TOOK $280.44 FROM ME ACKNOWLEDGES IT IS OWED BACK BUT HAS NOT GIVEN IT BACK New Orleans Louisiana

On December 19, 2017, I attempted to use a previosuly purchased gift card to purchase online goods.  I kept getting a weird message.  I called Macy's and was told there was a problem with the website taking gift cards and that they were working on it but didn't know when it would be fixed.  I used a credit card to purchase the goods only to later discover it also emptied my gift card of its entire balance of $280.44.  I have called Macys no less than 4 times.  They say it used my gift card and then cancelled the transaction and the funds should go back to the gift card.  They acknowledge I am owed it back and keep saying it is supposed to be credited back to my gift card, but over ten days later it has not been and I am still out the $280.44.