My Gift vouchers were swiped several times.

I went to legit Bridge city on the 2nd August, i was assisted by a consultant I had two gift cards, one had R300 and the other had R200 in total I had R500 in my Gift cards. I purchased clothes of the value of R900 odd rands, I asked the consultant to use the gift cards and my Legit account card to make payment, she swiped the gift cards they were both approved but it seemed like she did not know what she was doing the manager assisted, but then the system went offline, i was assured that my gift cards still have the money.I ended up paying with mt legit account for the R900 purchase. i went to gateway the next day but the declined they said there are no funds, i was assisted by the manager (Sam) after several attempts to call the Gift Card department and trying to trace where the money went to she eventually said they could not assist me. i have lost R500 that i did not make use off. I want my money in cash i do not want the gift cards anymore.<br>