Epic Games Email Changed Without My Consent

My Epic Games account (username: f2fxnapolyon) was hacked about 5 weeks ago. The email address was changed to an unfamiliar rambler.ru address. Although I can still access my account, I am currently unable to change the email or secure the account because the verification codes are now being sent to that unknown email address. I’m worried that I could lose full access at any moment if the hacker makes further changes. Please help me recover my account and restore my original email. If necessary, I can prove that the account belongs to me by providing screenshots, IP address, previous login history, or payment information. Thank you in advance for your assistance.