HSBC Credit Card
Fraud Settlement and Asking for Money, No answer since Three months

I am attaching the total convertation of mails. Inshort HSBC bank created the wrong settlement and there executives are aksing for money to waiver unnecessary amount. I have made so many complaints and mails to HSBC.Now there executives are not picking up the phone.

They are also not providing me NOC even i have cleared my total outstatning amout not even a single waiver from there side.

Myno is 9212758507.

Please do the needful or guide me through the process. It this right to make legal acton and where do i need to complaim to resolve.