Mamba - registered in 2020 | The only and last product on the market

Accounts are registered to mail. email or its domains like bk or list

so after logging in, so that you don't get blocked, you will need to go to Settings and replace it with your own non-Russian email and enter the password from the old account

If you didn't manage to change it in time and you got blocked, write to support and you will be unblocked, here is an example https://skr.sh/sZhhZO6EI2B

These are old accounts from 2020 registration, so this working instruction applies to them.