It’s often shortened to JWs or j-dubs in the US. I’m not familiar with the laws over there, but over here you can ask them to put you on their do-not-call list. You can even put it in writing if you like and mail it to their headquarters. Ask them to stop bothering at you at home and they probably will. But if they continue to bother you, you might consider getting recommendations from law enforcement on how to handle them. And there’s always the court of public opinion. If you’ve taken proper steps to get them to leave you alone and they don’t, start writing about it. Maybe post pictures of the letters you gave them or video your encounters with them and ask questions until you get answers or until they leave.

Hello! I've never heard of such a thing, but I certainly wouldn't put it past them! I've reached out to Lloyd (John Cedars - youtube legend where JW videos are concerned) to see if he knows anything about this phenomenon.