BuddyPress registration disabled but somehow users register

Hello there :slight_smile:

We have WP & BP registration disabled:

Settings -> General:

However, somehow we still get users registering on the site...

Luckily we have manual user approval enabled, but we keep on getting requests:

The only way a user could register, is purchasing a product on the site, however without valid payment, this would not be possible (unfortunately they don't make a purchase, but still register).

Could you tell us if there's a URL they can access, or how we can cut off this path?
Thanks!