I know JWs go door to door but I don't think they sell anything nor do they ask for donations - all their stuff is free? To qualify as a salesman you'd have to be selling something, surely?

My local C of E cathedral sent out a mailshot during COVID asking for donations with a range from £50 - £1000 options on the card (yes, really). I've never had anything like that from JWs.

I get visits from the local air ambulance team looking for donations but I'd classify them as a charity, not a salesman. Even though the person is under contract (employed) to do the task of going door to door, it would be a charitable engagement and not a sale. I asked the last guy if he got commission - he said no.