HDFC BAJAJ HEALTH INSURANCE CREDIT CARD - BANK FRAUD

BANK TOOK MONEY FROM MY CC WITHOUT MY PERMISSION

I AM A HDFC CREDIT CARD HOLDER. WITHOUT MY PERMISSION THE HDFC BANK TOOK MONEY FROM CREDIT CARD, SAYING I APPLIED FOR HEALTH INSURANCE.

BUT, I DID NOT APPLY HEALTH INSURANCE.

HOW A BANK CAN TAKE MONEY FROM MY CC WITHOUT MY PERMISSION?

WHERE HDFC IS HEADING ON?