Over the course of Monday, the UK bingo site is seeing double as it offers extra goodies to members who can "match the pairs".
Anyone interested in the competition is told to head to the site's forum for a full explanation of how the contest works.
There may be time to do so during Monday as the first promotional game is not due to start until 20:00 BST.
Members of the online bingo site can expect two full hours of doubled-up action as the schedule for the pair-picking promotion reaches through to 22:00 BST.
Among the prizes up for grabs, Think Bingo Cosy reveals, are electronic devices such as personal media players.
Online bingo players could find their friends offer a route to extra loyalty points at Think Bingo Cosy, with 5,000 bonus points up for grabs to anyone who refers a pal to play at the site.
Written by Bob Bardsley.
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