I expected better from Udacity, but apparently it's not enough to click the “cancel” button on your subscription. You have to chat to an agent that has to convince you Comcast style why you shouldn't cancel.
Funny enough, they'd put a “cancel” button and then a popup shows up telling you to chat to an agent.
Granted chatting with the “agent” took about 5 mins, but it's still kind of a sh!tty pattern.
If I can enroll online by clicking through and filling out my info, I should be able to cancel just as easily, not be coerced into chatting with an “agent”.