Found by @twitaculous

This is a competition from Jen Login To Enter »

Happy 50th Birthday to The Very Hungry Caterpillar! Visit the blog to take a look at the huge bundle of goodies we were sent to mark the occasion & for your chance to #WIN a copy of the book! @WorldEricCarle // #competition #giveaway #VHC50 #gifted #ad

Sometimes promoters tweet more than once.
Tweets will only get updated when you re-fetch them. This helps you because competitions will no longer "jump" between pages when competitions get added or competitions finish while you are browsing them. Competitions get "fetched" when you login or manually re-fetch them with "Forget Ended Competitions & Fetch New Ones". Additionally hidden tweets will stay visible until you "fetch" to save reloading the page and save you from losing your position.