if im not mistaken CO has lounge access for all BF customers regardless of the existence of a PC or an affiliated Skyteam lounge.

you are always entitled to use a skyteam lounge, but sometimes they are not conveniently located in terms of terminal or concourse. in those cases CO arranges lounge access with other lounge companies whether or not it is affiliated with an airline.

in GIG they use a random lounge that is two doors down from the Air France lounge. not sure why they just dont use that one. i thought that was one of the big stickers with skyteam.... reciprocal lounge access for premium passegers.