As per my last credit statement for HDFC credit card, I had an outstanding amount of Rs. 8,500. Within few days of this bill, because of refund I received credit of Rs. Rs. 11,000. Due to some other purchases in between the outstanding balance as on date is Rs. 3,800. Now I am confused whether I need to make a payment of Rs. 8,500 as per last bill or I should not make any payment at all. Please advice.