HSBC Bank — demand of payment of Annual fee

Dear Vipin
This is Manoj Garg son of Sh. V.C. Garg who is holding a Credit card of HSBC (Account No. [protected]) from Long time. HSBC Bank is great bank in providing the services even Our Company Ernst & Young also have corporate relation with such bank. I also have opted for new credit card from this Bank.
But Now my father is facing some problems form HSBC bank services like they have charged one Annual fee charges for Rs 700 in account without our knowledge. While opening the account we were informed that credit Card is totally free. When we requested customer care for reversal for the same but our request was not approved. Then my father ask for closing of account after making all required payments except one Annual fee i.e. Rs 700.
But till now we are receiving bills from HSBC bank by adding Some finance charges Rs 300 in that pending amount. Now total amount they have made is Rs 9,047 and asking for payment which we do not want.
Pl. take some corrective actions as we want to maintain good relation with such bank by taking loan from this etc. and I also have applied for Credit card I also do not want to face such problems.
Waiting for positive reply
Thanks & regards
Manoj Garg
Manoj.[protected]@in.ey.com