A version of this action that uses less javascript and may be usable for those who don't use javascript is available at https://kampania.akcjademokracja.pl/forms/zamow-i-wyslij-pocztowki-dla-poslow-i-poslanek-z-psl?nowrapper=true&referrer=&source=email-juz-1740-pocztowek-do-psl-zamow-i-ty&oneclick=