I called, got a human in about 60 seconds, and they refunded me as well as told me how to disable auto renew. I see no problem here.Three problems: 1) You had to notice the price change. If you have never not noticed anything, then you might have gotten taken. 2) You had to have the will to object. Willpower is a limited commodity. Is vendor bullshit what you could best be spending it on? 3) Your time is worth something, and GoDaddy just wasted it because they can make more money that way.
At my company, our rough rule of thumb is that a technical person's time is worth $250/hr. (We don't pay them that much, but we care more about opportunity cost.) Even if GoDaddy's shenanigans only take 10 minutes, that's still $41.67 lost. And that's not even counting the fact that next time I do something with them I have to spend time figuring out how they're going to try to cheat me.
Dealing with asshole vendors is rarely worth it once you take everything into account.