Registration - not even CHI can get it right.

I registered for the CHI 2002 / AIGA Experience Design Forum (also here) this evening. As part of my registration, I signed up for an AIGA Associate Membership. It cost $190, according to the registration form. BUT, when the summary is displayed, after you’ve accepted the charges, the cost is $195 [pdf].

What’s this? CHI not testing their own registration form?