Website ticket exchanges...and what to do with downgrade money

Hi Everyone,

I have another question about use of the website pertaining to subscribers. I know at my previous employer, if a subscriber exchanged their tickets through the website, the money was put into a downgrade payment type BUT, if the patron was savy enough, they could put that money towards a gift certifcate (we have crafty patrons in Milwaukee).

My question is: what do all of you who allow exchanges online with the leftover money from a downgrade?

Chris