Amex denied an airline booking as potentially fraudulent which caused my entire family to miss the flight and get stuck overnight. Amex called me literally one minute after booking the flight since the charge to check if it was valid. I told them yes but there was no way for them to approve it, only that I could re-book. Well, how is that going to work if they will just deny it again? In the 30 minutes I tried to work things out the seats were taken and we were stuck. read full review »