You can install our site as a web app on your iOS device by utilizing the Add to Home Screen feature in Safari. Please see this thread for more details on this.
Note: This feature currently requires accessing the site using the built-in Safari browser.
If your car isn't a salvage title and you connect to WiFi regularly, you definitely should have received it by now. You should be able to put in a request in the Tesla app via the "Schedule Service" button.