We would like to inform you that we no longer support login via MojeID.
For accounts that were using MojeID, the login method has been changed to username + password.

If you are still unable to access your account or don’t know your username, please contact our customer support.

You can reset your account password here: https://subreg.cz/cz/lost

After logging into your account, you can change your password in the section:
User Settings → Passwords

If you want to improve your account security, you can also choose the option:
"Login using standard password and online 2-Factor key" in the same section.
This enables two-factor authentication on your account.