Unable to reset user

Hey, I am meijin007 on Keybase (see https://gist.github.com/assapir/9fce4b586b35c3f02d9e7079ea7957b3).
I don't remember my password, nor have any of my old devices.
Trying to reset my password and account, I don't get any email.
I am not sure what email was used for registration. I can do an MFA by also tweeting (see https://x.com/meijin007/status/1254842778888085505)

Thanks!