[Resolved]  SBI Bank — Very bad after sale service

I unfortunately own a credit card of this bank. God Forbid any one should not have it so as these people are relying on their goons and they don't care 2 hoots about the previous track record of their customer. Now let me come in details. I have this card since 2007 and all my payments were in time suddenly I receive a call from a gurgaun number and asks to give payment or face dire consequences. Is it a bank or a Private Baniya giving Udhaar without terms or conditions please avoid this bank.