Issue with entering into account (forgot for wich email account was created)

[Maxmyd]

Hello!

Guys can you assist me.
I remeber a login and password for one of my account.
I clearly remeber, that I didn't enable 2step verification
When I tried enter into account, I received a notification to provide security key.
I can provide information when I last time log in and some additional infos if needed.
Can you help me restore this account.

Thanks and all the best.

[OhieMitzen]

[UPDATED] Account security improvements