If you didn't call to sync it, someone in the back office of COdbaUA would probably have synced it, and you wouldn't have been able to witness the destruction to your record in real time.

And if they left it out of sync, wouldn't it have to get back in sync at the airport to check you in? Then the destruction might happen on day of departure.

Either way, I suspect that whatever happened to your record may be somehow related to some of the partner dropping issues we see from time to time. If the tickets are out of whack and/or CO touches them, then it has the potential to wreak havoc on the partner pieces of the record.

And by the way, if an agent tells you they can't put you back because the fare bucket is not available, push back if it's a systems issue. They can sell you into whatever is available. If Full C is available, then so be it. Might cost them some money to do it, but they certainly can.