Axis Bank — debited by savings account for a credit card that I don't own

Hi

My savings account has been debited 5696.84 rupees with a msg brn pymt card.

One month back i received a msg from axis bank that auto debit option has been activated on my account for credit card ending with 0743. I didnt have axis bank credit card for the last 7 years. I haven't requested for a new card also. I am not sure which card this is. Now the charge 5696.84 is deducted for this card which i don't have or not used. I spoke to axis bank customer care for more than hour with different departments and no one has a clue