A week ago I purchased a flight on Lufthansa, directly on the Lufthansa website. Upon clicking "confirm purchase", my purchase didn't go through and the system said it was due to my credit card not being processed. Apparently the purchase set off my fraud alert system so the card was declined. I tried again 5 minutes later, and the purchase went through. I received my confirmation email of the purchase, showing my xx'd out credit card number, ticket number, and reservation number. When I logged into my credit card account, the purchase amount was in the 'Pending' column.

Yesterday, I logged in to my credit card account, and the purchase was not there, the money was never charged to me. Panicked, I called Lufthansa and gave them my ticket number. They confirmed my ticket and said I am on the flight, and that the flight has been paid for. The lady on the phone said "It shows your card was first declined, but then the purchase went through. The money has been collected and your ticket is paid for and you are confirmed." I'm confused as to why then the purchase disappeared from my Pending transactions and I haven't been charged? Has this happened to anyone before?