Originally Posted by
Helsinki Flyer
Club access at FRA might be a RA perk, but you have to ask for it. They told me that they´d offer it to me this time. I got the impression they were doing an exception that time only. I only knew to ask because of reading about it here.
You do not have to "ask for it", you only have to ask for the informtation. Different from other hotels you do not need special key, you just go up the top floor and enjoy. And seriously: With the exeption of IC Berlin I have rarely seen a place actively promoting this undocumented perk.