How do I recover my forgotten account?

It seems I have forgotten the email to my previous account. I have nothing to recover it with other than an Overwatch key (which I used to redeem the game itself many years ago) from a physical box. Can a blizzard support employee have a private chat with me?

It’s impossible for me to open a ticket due to the account verification questions on the blizzard website.

This forum only offers player-to-player troubleshooting. The staff will not see your request to reach out here. To contact the staff, you will need to use the ticket system.