Coast to Coast and Good Sam Membership

I have a Coast to Coast membership, just renewed and received my renewal packet. Inside of it was a card to fill out and snail mail back in order to activate my included Good Sam membership. There was no web address to renew my included Good Sam Membership online.

Am I missing something? Good Sam will let me pay to renew online but why can't I renew my Good Sam from Coast to Coast online? I don't want to use snail mail especially since if I filled out the card, my personal info would be exposed for all to see on the back of it.
Thank you