ATTN: Members of CLASSMATES -
Unless you want to get stuck with an annual Gold Membership that you don't want, be sure that your renewal status is marked "Manual," NOT "Automatic". I caught/disputed the charge 2 days after it was made, and Classmates would not cancel it.

Can't you just contact your credit card company and tell them that you do not want it, and did not sign up for it. And that they are trying to charge you ror another year.
I spent 45 minutes on the phone w/Classmates & my credit card company today.
Classmates is giving me a 50% discount and my card company is going to eat the balance.
With the move to Austin last year, I put $30-$40 thousand dollars on that card (and paid it off in full), so I guess they appreciate it.
In any event, if you're with Classmates, make sure you do a "manual" renewal, so that you don't have this problem.