At the bottom of the payment screen was this anonymous piece of text:

This isn’t just any old blurb. This is you allowing Avangate to automatically take money from you next year. Clicking on the 'here' link gives you this:

Basically, they are hiding the checkbox that allows you to opt out of automatic re-subscription. Now why would they do that? It’s hardly saving space on screen. No, this is completely by design because they know that if you see a checkbox you are more likely to pay attention and therefore are more likely to opt out of automatic re-subscription.
This is an underhand tactic to tie you in to their product and to guarantee a revenue stream. Come on Avangate, you are supposed to be in the trust business. This hardly qualifies as trustworthy behaviour.