Moderator, Iberia Airlines, Airport Lounges, and Ambassador, British Airways Executive Club
Join Date: Feb 2010
Programs: BA Lifetime Gold; Flying Blue Life Platinum; LH Sen.; Hilton Diamond; Kemal Kebabs Prized Customer
Posts: 64,017
Did you book this before you were Gold? In which case the booking may notionally suggest you are still Silver. Either way you'd need to call and though today wouldn't be a good day to do so (delays are starting to build up at LHR and flights have been cancelled), a quick call to the Gold line first thing tomorrow would resolve the issue.