I have been using Manhattan platinum card for a few months now..it has the horrible interest charges, abt 41% app/annum as compared to any other banks. To my surprise, in-spite of making all the payment last month (July - 2010), they have changed me with interest of abt Rs.460 again this month, without any purchases. And when I called the customer care to check abt this they say its their company policy and tell us not to compare their bank with any other bank. To my surprise, the customer care executive was ready to revert the 50% of the amount charged and not the entire amount. Have stopped using it anymore!
This is horrible card. Never use this.