Big Bazaar (Express Avenue - Chennai) — Billed me twice for my purchase

Address:

Chennai, Tamil Nadu

hello i have made purchase worth RS 5301 and the cashier swiped my card two times, when i asked him why he did so he said some connection problem, i was a little suspicious and asked him will i be debited twice he said "no sir the first transaction is cancelled" then i returned home and i crosschecked with my online banking and i was surprised to see there were two debits 5301 + 5301 = RS.10, 602. i rushed back to them and they said it will be credited back to my a/c in 8 hrs but its been 24 hrs no response i have registered a complaint with their customer care and raised a ticket no as well 7019466. invoice no 0079933 tid no 54311996 so please help me out with this mohsin [protected] mohsinabrar.[protected]@gmail.com