This is possibly a ios14 bug, see here: "https://www.techradar.com/news/ios-14-bug-is-messing-with-email-and-browser-settings"Try to connect only to wifi and see if they work. If they don't, it's ios14 not PM. You could revert then to the previous io...
3 days for me (Windsor, ON). I ordered min on 8/31/20 (Mon) from PM and arrived Fri 9/4 after 3 days, via Canada Post. You get confirmation and shipping emails too.