"Booking" nightclubs for solo tourists in their thirties

I've heard about booking nightclubs in Korea, where you can pay a waiter to bring over someone of the opposite sex. I'd like to try it, but I've got a couple of questions.

I'll be 38 when I go over later this year, though I look younger, and this Time Out article talks about the clubs setting an upper age limit. Am I likely to find clubs that'll accept someone my age?

I'm caucasian, and I'll only have a basic understanding of Korean when I get there. Will I be allowed in, and is it possible to ask for a woman who can speak English? Or alternatively should I hire a bilingual tour guide?

Are there any scams to watch out for with booking clubs, such as the woman asking for payment or only receiving the bill at the end of the night? (Expensive prices, but paid up front, do not of themselves qualify as a scam.)