Go to the Accounts tab on the home page, click it and go to Subscriptions. Cancel. Easy as pie. Wait, is pie easy?
As far as your points go, /yawn. The devs clarified that video and the incorrect date; read the Dev comments. They have a whole forum section with links to everything the devs say here.
Before you lament about someone going to Cryptic's defense; pointing out where you're wrong isn't defending someone. Just pointing out where you're wrong. But if this is SUCH a big matter for you that you MUST <sob> quit, then so be it. Do whatever you want to do and g'luck finding something you enjoy. Probably won't be a MMO though. But whatever.
Firstly thanks for the instruction however there is no garantee i will get me money back as far as i know.
secondly the person i am on about is a dev not someone defending the thats what is unacceptable