Flipkart — Fraud related to pay later

Two days ago this account was hacked by unknown person and he was placed so many unwanted orders from this account and use my pay later service. I contact with a flipkart assistant he is saying that he will hold my account and update mobile no. And that problem will be resolved. From two days that assistant regular contact me and manage my account from his end. Today at 10:50am he again called me and say that you will received a otp to update mobile no and email id. I gave that otp and he change mobile number and email I'd and make a transaction of 39600rs from pay later. Now, I am again login in with my original no. But no order detail are showing here regarding that pay later transaction and also my previous order are also not showing there only some unwanted orders which was I cancelled it showing there. What should I next to do?
I honourly request to you please concern on this matter and take a action regarding it and please make flipkart more secure.
I have attached some pictures and screenshot related this matter.
[protected] - flipkart assistant no.
Name - Rahul (flipkart assistant)
Thank you.