Three phone calls, several emails, several attempts to buy on line, one box office visit later and I still don't have a definitive answer as to whether you can get a subscriber prices after buying tickets to a certain number of performances using the single-ticket online purchasing system.
I've gotten two different answers from the box office in my several contacts with them. Wish I knew which is correct! Because the web site doesn't say (FAIL) and I got different answers from the box office (FAIL).
So I'm sending snail mail to the people who presumably know. I hope I get this straightened out in time to buy tickets to the Mahler Third.