Found by @twitaculous

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It proved so popular last time that we're giving it away again! This fantastic Screwdriver & Bit Set could be yours in this week's #FreebieFriday #competition. Simply follow us and retweet this post to be in with a chance of winning. Usual T's & C's apply. Ends 3rd August at 4pm

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.