I'm looking at the Amex Gold card that enables 4 airport lounge visits a year. The small print says 1 person and guest so I assume that means DH and I would be "free"? I can pre book to guarantee a spot for £6, we have another adult with us who would presumably pay full price? So we can reserve for £18 then when we arrive one of us would pay? Can anyone confirm or debunk this please!