Airtel — fraud transaction through sbi credit card to airtel money

Address: Kanpur, Uttar Pradesh, 248001

I had got a call from a number [protected] saying that they are calling from sbi and they are offering some reward points. A girl asked me to provide 16 digit card number which i denied, then she asked 4 digit which i gave. She then told me my 16 digit number. She also told not to share my cvv number with anyone. Later on i got 3 messages with otp. 1st transaction 10000 to airtel money, second 10000 to airtel money and third 2000 to paytm. My first two transaction were deducted, third one did not happen. Later i got a message fro [protected] that "welcome to sbi bank card your money will be refunded after 72 hours". I asked her how did the money got deducted, she said not to worry. I later found out that it was a fraud transaction. I am surprised how they had all information about my card and card details. I request my 20000 should be reimbursed from airtel money or sbi.