@AmericanAir happened to us as well on 24th July. My old parents lost their bag as AA agent outback wrong tag on bag and now refuse to acknowledge the bag tag. We have the proof Travel and bag tag. I haven’t even received a response.
@AmericanAir#LostLuggage since 11 days. AA AGENT put WRONG bagtag on our checkedin bag in SEATTLE. Agent acknowledged the mess up and promised to fix it however our bag NEVER arrived in LA. Now we are told that no such bag tag even exists. How can you refute the attachéd proof?