Originally Posted by Markie

My return experience - GGL and booked in F - on BA was that I was denied entry to Chelsea by an AA employee as their system shows me only as Emerald and hence only available lounge is Soho.
I checked with the agent that my F ticket didn't get me in to Chelsea and she confirmed it did not.
I asked for her to summon someone from BA. He duly arrived, confirmed an error and took me in to Chelsea.

The irony was that the initial agent had a BA produced document showing access rights. Apparently they ignore this as it's a BA document.