Konami Efootball Account Recovery

I am writing regarding a serious security problem with my eFootball mobile account. Yesterday, my account was hacked and the person who accessed it without my consent changed the email address linked to my profile. As a result, my eFootball account is no longer under my control, and I suspect the hacker also changed the password of my linked Google account. My in‑game nickname is “Sacredsage42”. When I checked my profile page on my.konami.net, I saw that the email address had been changed to a different one that does not belong to me, which clearly shows that someone has taken over my account without authorization. I kindly request that my eFootball mobile account be secured and that the email address linked to it be changed back to my own so that I can regain access. I also ask that you investigate this unauthorized access and take any necessary measures to prevent this from happening again. I am ready to provide any additional information you may need to verify that I am the rightful owner of the account and to help restore my access as quickly as possible.