Finally just got this in an email from McDonald’s...
As if I hadn’t already tried this dozens of times. Obviously they don’t actually read the messages they get, or they would’ve seen where I already told them I had done this. Sheesh! (and I don’t talk on the phone so I won’t be calling them)
”We recommend you open McDonald's app & press down on the more menu on the bottom right. Press down on the ‘log in’ option that appears from the more menu. Then click on "Login with Facebook" and/or "Login with Google" as we believe when you first registered with the McDonald's Global Mobile App you likely registered with one of these options. If this turns out not to be the case, after trying both of these options, please call in to us at 1-877-334-4332 during our regular business hours 7:00 a.m.and 7:00 p.m. CST Monday through Saturday so we can further assist you.
Please don’t hesitate to contact us. We value you as a customer and hope to serve you soon at the Golden Arches.”