Update per response from McDonald's on 1/20/22. Rating dropped to 1 star. Left all pertinent info only to be told to uninstall and reinstall the app which did nothing to resolve the issue. App still won't let me use my gift card for purchases. I was referred to another link to voice the complaint and that one told me to delete the app and re-download it. Didn't change a thing. Bummed because I can't take advantage of the mobile only deals. Guess I'll be checking out other options.