Efootball Account Recovery Assistance

My eFootball (Konami) game account is locked because the email address tied to it is no longer accessible. The task is straightforward: recover full control of the account using only legitimate, white-hat methods... (Budget: ₹600 - ₹1500 INR, Jobs: Account Management, Computer Security, Customer Support, Data Analysis, Research Writing, Technical Support, Technical Writing, Web Security)