Hi, I'll be flying out of Santiago (Chile) with Copa. I'm Star Alliance (United) Gold. I was wondering if there's a lounge there I can access? Star Alliance lounge finder says there's none, however on Santiago Airport's website it says that Copa has something called VIP Lounge Mistral (which seems to be a LAN lounge, but maybe they share it?). Any idea?

Another question, the rules seem to say that you need a flight for the same day in order to access the lounge, however my flight is after midnight (3.54am), could I still access the lounge the night before? It closes at 10pm.