PLEASE ASSIST

HI MY NAME IS RACHAEL, MY 65-YEAR-OLD MUM HAS RECENTLY PURCHASED A PLANE TICKET FOR THE 25TH OF MAY HOWEVER THE CASHIER CLICKED ON THE WRONG DATE WHICH WAS THE 18TH. MY MOTHER ACCEPTED THE TICKET AS SHE WAS TOLD PREVIOUSLY TO SIGN. WHICH SHE DID. A FEW DAYS LATER SHE HAD SENT ME THE TICKET FOR CONFIRMATION OF EXPECTED ARRIVAL TIME AS USUAL. I READ THIS TICKET AND INFORMED HER THAT THE DATE WAS INCORRECT. I QUERIED THIS AT THE STORE SHE PURCHASED IT FROM. THE FINAL VERDICT WAS, THIS WAS WITHOUT CONSULTING SENIOR MANAGEMENT, WAS ONLY THE AIRLINE CAN ASSIST. MY ARGUMENT IS SHE BOUGHT THIS FROM THE STORE, IT HAS PASSED 72 HOURS, HOW WILL THE AIRLINE ASSIST. MY MUM IS 65 YEARS OLD PENSIONER, R545.00 IS A LOT OF MONEY FOR HER. WHY IS NOT BEING COMPENSATED. SHE WOULD HAVE NEVER BOOKED THE TICKET FOR THE 18TH AS SHE HAD TO ATTEND A FUNERAL ON THE 19TH AND THAT WAS HER MAIN REASON FOR COMING TO DURBAN.