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I bought the retail version from greenmangaming (which got delivered last Monday, yes they are that awesome!) and today I activated my retail key. I used paypal to set up a subscription and everything went through just fine. I did NOT get charged anything. So if you were afraid that you may fall victim to the issue where people got charged straight away, don't be. It seems they have fixed this. For those people who got charged yesterday or the day before, contact and they should reverse the charge.
Although it does seem that my time starts ticking from yesterday as I have 29 days left. So that buffer they allowed to activate your key by Sunday is just that - a buffer. Don't think you get "free days".
Anyways - game is awesome so go play it
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