This feels a little "don't you know who I am?" but not a great bit of PR for British Airways. 

Game of Thrones star Maisie Williams has been denied access to the British Airways business class lounge because she is under 18.

Of course, she took to Twitter to complain about it:

Denied from the business lounge once again for being under 18 and without an adult.. British—Airways sort your shit out.

British Airways later responded by saying that there's a bar in the lounge that's often left unsupervised, hence their 18+ rule. Seems pretty sensible to me but I wonder if they explained that clearly to Miss Williams.