HDFC Bank — credit card interest rate

I have a dispute going on regarding unauthorised transaction since few months now.
Hdfc isn’t resolving the issue now even replying to my mails.
They have been charging interest rate despite me requesting to inform me how much payment do i make to avoid such scenario
Dispute:the transaction got approved without any notification on the next day despite o[censored]nsuccessful transaction message and mail. Ref :- [protected]

How will i come to know regarding this? Hence haven’t made the payment since.
Now even thou the dispute is going on, the bank is charging late payment fees and interest on the outstanding amount.

I have advised i am ready to make the necessary payment until the issue is resolved but i haven’t got any mail or a specific amount to the needful.