Hi all,
My mother is flying to Turkey from the US and has a long layover at LHR. She can use the AA LHR arrivals lounge to freshen up, but then short of spending the rest of the time spending money in duty free.

I was hoping that her Business class award on THY would allow her into another lounge to spend a bit of time until her next set of flights.
I called THY, they say that there is a lounge at LHR, I assume its the Servisair lounge, but when I went to the servisair site, I don't see what airlines use this lounge.
Any suggestions?
lala