I have a some xx bank credit card. While getting that card, marking person told that “Life time free Card”. When a got that card, that xx bank given 30000 of Loan on card. Loan Condition is Like “ If you paid back that Loan with in three months, No interest will be add to the principle”. So, then I was taken that Loan and I paid back within three months. So now, one person made call form that xx bank and he is asking me to pay thee thousand rupees more. So, now what should I do…. Can any one please help me.