State Bank Of India [SBI] — Credit card calls from -[protected]

Address: 121004

Today i have got a call from [protected], asking for confirmation of credit card details for increasing the credit limit but i declined to give him any information. He first confirmed me the expiry date of my card, which i don't know from where he has got the correct expiry date of my card, then he asked me whether i have visa card or master card and thereafter he asked me for providing last four digits of my card which i declined to provide him. I request you to kindly block this number so that no other incident happens in near future.