CAN I PLEASE GET MY MONEY BACK

I WAS DOUBLE DEBITED MY SPAR CELTIS RIDGE ONT HE 24/12/2015..THEY COULD NOT REVERSE THE MONEY AS IT WAS NOT SHOWING ON THEIR SIDE ,THEY ADVISED ME TO GO TO THE BANK WHERE THE AMOUNT WAS PENDING.IN JAN I WENT INTO THE CENTUION BRANCH ,FORMS WERE FILLED ,COPY OF RECIEPT GIVEN ,AND I WAS TOLD 7-10 DAYS THE MONEY WILL REFLECT .AFTER WEEKS WENT BACK AS THE MONEY DIDNT REFELCT AND I WAS ASSURED THAT IT WOULD BE SORTED .NOW STILL HAVENT RECV ANY MONEY AND ITS FEB ,,I ALWAYS HAD TRUST IN FNB AND FELT IT WAS THE BANK TO BE WITH .THIS IS NOT THE SERVICE I EXPECTED FROM YOU GUYS.I CANT KEEP ON WASTING MY TIME AND GOING INTO THE BANK AND SIT IN A QUEUE AND JUST GET TOLD THE SAME THING AND THEN NOTHING HAPPENS ..CAN SOMEONE JUST PLEASE ASSIST ME AND GET THAT MONEY BACK TO ME