Help with LHR Clubhouse access

Hi, I don't know if this request is politically correct or not but here goes!
I have purchased my son & his fiancé return tickets to New York (EWR) to reward him for eventually graduating (a few failed years due to health reasons).
They depart on Friday 27th November from LHR. Are there any members who are flying UC that day (or AU members) that could sign them into the Clubhouse as guests?
I am willing to pay to enable them to enter the Clubhouse but I'm aware that entry on the day is not always guaranteed.
I have nominated him for family Silver membership as I've just got AU myself but also understand that this won't give him access to the Clubhouse either.
Any help would be very much appreciated.
Taffy
I have purchased my son & his fiancé return tickets to New York (EWR) to reward him for eventually graduating (a few failed years due to health reasons).
They depart on Friday 27th November from LHR. Are there any members who are flying UC that day (or AU members) that could sign them into the Clubhouse as guests?
I am willing to pay to enable them to enter the Clubhouse but I'm aware that entry on the day is not always guaranteed.
I have nominated him for family Silver membership as I've just got AU myself but also understand that this won't give him access to the Clubhouse either.
Any help would be very much appreciated.
Taffy