Please Help Me Access Back My Konami Efootball Account

I am writing regarding the loss of access to my Konami eFootball mobile account with the in‑game username “gx6.savage”. On 09/12/2025, I mistakenly uninstalled the game from my mobile device and, after reinstalling it, I was unable to remember the Konami ID and password I had used to log in. As a result, I can no longer access my existing progress and account. I contacted support and was informed that I needed to provide my Konami ID or password. Unfortunately, this is exactly the information I have forgotten, so I am stuck and cannot complete the verification process on my own. I kindly request your assistance to either help me recover and restore access to my “gx6.savage” eFootball account or at least identify the Konami ID linked to this in‑game username, so that I can log in again. I would like to continue using my existing account instead of starting over, and I am ready to provide any additional information you may require for verification.