We're on the other end. We've changed our address with all our service providers and yet still some go to our old address. Found out today that Aus Post has had an incorrect redirection going for over twelve months to some poor guy, who has kindly kept the mail for us. We think we've finally got it sorted now.

I'd be inclined to toss any advertising but keep RTS the important stuff. Sometimes it's not the previous person's fault.