Found by @twitaculous

This is a competition from The Tank Museum Login To Enter »

Win a TANKFEST 2020 Sunday family ticket! Sign-up to The Tank Museum's E-Newsletter by 24 February for your chance to win. TANKFEST is the world's best display of historic moving armour. Sign-up up here (current subscribers included):

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.