Troubleshooting of account creation

I tried to register new account but gitlab asking me about verification code.
Currently i do not have any 2-factor auth app linked to GitLab and looks like i have neve had and can’t create my account.
How can i solve this? Does support can solve this issue?

Maybe it wants you to verify your email address, so you need to check your email and provide the code to verify your account/email address.

Unfortunately no, i checked all emails and do not found any with gitlab for last time. I also can’t find any email for registration, maybe i deleted it, i do not know.