Reserve Bank Of India [RBI] — fraud in sbi credit card

Address: Ahmedabad, Gujarat, 382424

I have purchased credit card on 15 march 2018. After 5 days phone had come for registration and gift. Where my complete details of card including my name, card number and expiry date were told me. This increased my confidence that this phone is from bank itself.
I was asked to give a number sent by them and soon money started getting deducted.
I was not asked to give otp. Which would have given me a clue that this is fraud.
Rs 74 000 has been used on my card on different dates.
On complaining to sbi manager he did not respond and the girl who was getting the card forms vanished.
Next month installment of this amount was deducted even when i had not filled any such form. Sbi manager on my complaint did not respond.
Credit card number is [protected]