Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_0 like Mac OS X; fr-fr) AppleWebKit/532.9 (KHTML, like Gecko) Version/4.0.5 Mobile/8A293 Safari/6531.22.7)
It seems the use of any FB AMEX co-branded card (French and Dutch) extends the validity for another 20 months. That would explain your "luck".