“That way I can still get stuff from people on eBay or Amazon, everything else gets returned to sender. Of course if I have to fill out and send in a form the deal is off.”
That’s your problem right there. Amazon, and every other place you forgot you gave your vitals to. It takes about five years to get zero unwanted. And, your second line above — every ‘helpful’ form you fill out adds more incoming sooner or later.