Oh, must be a new thing. They certainly didn't have that 12 hours ago, so I guess their trials are on high demand right now. There's no way of telling how long it will take to get your key, but if you're not planning on becoming a full-time member, you should still turn your auto-renewal off in the meantime. There is a possibility that some people out there really are making multiple accounts for key farming since the promo has spread on so many message boards, and therefor they would've had to include a certain time period before they can give you your key. That time could, however, extend from anything between something like a day, to a week or more (in other words, you might only get your key once you've paid for the three months). This is pure speculation though, it is equally possible to receive the keys while you're still on your trial period.