[Resolved]  HDFC Bank — credit card amount settlement

I own hdfc bank credit crad from bodakdev ahmedabad brach. Because of not satisfied with card i ask for pending amount for settlement. So bank has raised settlement in 6 installments. I paid installments regularly but during settlement period bank never communicated. During that period i misplaced amount and paid 2500 instead 2900 in 6 of 2 installments.
But never ask to pay that remains ₹ 800 during settlement. After settelment completion period of 3 months bank told that your settlement is void/revoked and you have to pay all amount again. Additionally bank also added charges to credit card since the beginning of settlement. So tell me how to resolve my problem to close card accounts even after paying. Only i have to pay ₹800 but is not getting agee. Kindly resolve. I email hdfc grivence officer but she also not properly respond.