Found by @toastman

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WIN a copy of the incredible Sympathy by Olivia Sudjic on Day 7 of the #RiffRaffWriMoGiveaway! RT this post and follow @riffraff_ldn and one of two copies could be on their way to you. Good luck! #nanowrimo2018 @PushkinPress

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.