IDFC Bank — Not Solving my issue

Dear Sir/Ma'am,
I want to open my FamPay account but when i logged into my account someone else was registered with that account so i emailed Fampay at mail id [protected]@fampay.com, in which they replied after 2 days, and i asked them to reset my account if it is possibe so i can edit the details and type name in the app or if it is not possible it is requested to please delete my account but they are not doing anyone of the things and i mail litreally mailing them thousands of time but they are not replying to the mails and they do not have the contact no so that i can contact the fampay support, This is not accepted i want my issue to be resolved at earliest.