Flipkart — Email Id is not being changed and all my email are being sent to someone else

Address:

24/2 Pinpurath House, Lakshmiyyiah Layout,, Abbigere, Chikkabanavara post

Previously the email was set in my email address [protected]@gmail.com and my friend have accidentally changed it to his email id [protected]@gmail.com

Currently not able to get back to my initial email id

And I have also checked the email id has not been assigned to any other account it has been assigned to the same user.

There is no change from there side even after 10 to 15 calls.

Please help me