Credit card ***** not being dealt with

I contacted the FNB ***** Division to report that my Discovery Card had been used without my consent. I told them that when it was used at a store in Edenvale it was impossible for me to have done this as I was in Durban at the time. When they persisted that I had to have used the card I went to the store in question only to confirm that I have never been in the store where the card had been used. I have been unable to get them to take any responsibility for the ********** transaction and have received a number of machine generated and standard responses. I feel that I am dealing with a machine as not once had an employee of FNB ever assigned their name to any of the replies. These machine generated responses still insist that it could only have been myself who initiated this transaction even though it was logistically impossible to have initiated the transaction I I was 700km away when the transaction took place and i have never been into the establishment where the transaction took place.