Best of luck everyone!
A lot of you aren't completing the daily tweet properly! You need to click on "Tweet" in the Rafflecopter, when the box pops up, click "Tweet" on that too. If done correctly, it will say "Your Tweet has been posted." If you then click "View it on twitter", it will take you to your tweet, which you then have to copy and paste the link. If you're struggling with that, just go onto your Twitter profile, find the tweet, right-click the time, copy the link then paste it into the Rafflecopter box. It is really simple when you know, any queries please ask!
See Rafflecopter's explanation video here!