OVERCHARGED AND LET ME PAY TWICE FOR ONE ORDER!

ON THE 1st of JANUARY ON 19.59 WE BOUGHT SOME KFC AT ALBERTON KFC FOR THE AMOUNT OF R118.90 WE PUT OUR CARD IN THE MACHINE IT SHOW APPROVED AND WE RECEIVE A SMS FROM FNB THAT IT WAS RESERVE FOR KFC THEN SUDDENLY THE LADY AT THE BACK OF THE COUNTER SAID THEY WENT OFFLINE AND WE MUST PUT OUR PIN IN AGAIN BECAUSE THEY WENT OFFLINE?? APPARENTLY SHE SAID THE MONEY WILL BE REVERSE AUTOMATICALLY BUT THAT NEVER HAPPENED SO WE PUT OUR PIN IN AGAIN THEN WE SEE 2 SMS ON OUR PHONE THAT WE HAVE PAID TWICE TO KFC FOR ONE 1 ORDER SO THEY CALL THE MANAGER REFILOE AND SHE SAID THE BANK WILL REVERSE IT AUTOMATICALLY BUT IF NEXT MORNING IT DID NOT HAPPENED WE MUST COME IN SO SHE COULD TAKE THE CARD NUMBER AND TELL HER BANK TOE REVERSE IT. SO WE DID THAT THE NEXT MORNING AND RECEIVE A SMS ON THE 2 JANUARY THE RESERVED MONEY WAS RELEASED. ONLY TO SEE ON THE 6 TH THEY KFC PUT THE TRANSACTION THROUGH AGAIN AND WE PAID FOR IT AGAIN!! WE CALL OUR BANK AND THEY TELL US KFC REVERSE THE MONEY BUT THE PRINT COME ON AT THEIR SIDE FOR THE ONE THAT WENT OFLINE AND SO WHEN THEY BANK THEY PUT IT THREW AGAIN FOR PAYMENT FROM THEIR SIDE AND I WANT MY MONEY BACK FROM THEM IT IS THEIR FAULT TO LET ME PUT MY PIN TWICE