SBI Card — Asking credit card details and CVV

Address:

Bangalore, Karnataka

I was getting call form [protected] / [protected] for card verification saying he is from SBI card and asking for credit card details like card number, birth date and I was shocked when he asked for CVV, I said we are not supposed to give CVV number so he was insisting and forcing that credit card reward points need to be transferred for cash so it was needed, I did not give any CVV number and next moment I got a message of OTP from MMSHOPPING_PayTm, he was shopping via Paytm for Rs.6870 again he called me and asked for OTP number I was further shocked and surprised, I said will talk to customer care then I will give you details. I called customer care and they dined about any such reward point program. Now the question is how my details got leaked with unknown person apart from bank and please check above number I believe they are doing fraud and spending money of credit card customers.