Found by @twitaculous

This is a competition from haveyouseenmysocks? Login To Enter »

Follow, Retweet & Reply for your chance to win a one-month Colourful #SocksSubscription. When it comes to colourful socks which do you prefer spots, stripes or checks? #Win #Competition UK Only, Ends 30/08 9 am, T&Cs Apply

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.