Here's the situation. I just purchased a lounge membership yesterday so obviously haven't received my membership card yet. I'll have a couple long-ish layovers next week, one in IAH and one in CLT. I shouldn't have any issues accessing the lounge in IAH with a printout of my receipt, but what about US Airways Clubs in CLT? Will they accept a copy of my receipt and let me in, or am I out of luck?