My Wargaming.net Account Locked Out - Unable to Access Email for 10-Year Account

I've been a member of the Wargaming.net platform for a decade now and have made multiple payments during that time. At the moment, I'm unable to access the email linked to my account, which is causing me difficulty logging in. I possess several documents that clearly establish my ownership of the account, yet I have not received any response to my support requests for an extended period of time. I need your help.