Can't change secondary email

Hello,

years ago somebody hacked my account and added his email as secondary email.

I want to remove him from my account but I can't..

 When I press delete 

Then popup "something went wrong" appear and page refreshes itself. That's on the brave browser.

I tried on safari and on safari it reloads page without popup.

Editing has the same effect..

What to do?

On the network request to

https://myaccount.ea.com/am/data/1/remove-sec-email

i have 403 forbidden lol