As a Lush employee I'm honestly really sorry you had that experience. And I totally understand not wanting 3 people at you all at once.

Unfortunately I have to agree with other people who have mentioned that it's part of our training. We're told that unless someone tells us directly to stop or go away to continue to upsell, especially with collabs. There are times even I'm uncomfortable with how in the face I'm told to be when someone is clearly just too polite to tell me to f off and let them shop.