All brokers need to do is visit the TMW website between 6 December 2010 and 21 December 2010 and enter one or more of the 12 games.
Styled as an online advent calendar, the competitions will feature games such as brain teasers, crosswords, Sudokus, mazes and many more.
In addition to the 10p donation to Shelter for every entry, a winner will be selected at random and receive Marks and Spencer vouchers worth £200.
Since 2008 Nationwide has provided funding for Shelter’s Housing Support Service, which offers free support for homeless families making the transition into a settled home.
Ian Andrew, Nationwide’s head of intermediary sales, said: “We want to thank brokers for all their support this year by giving them a chance to win a £200 prize this Christmas. Not only will this help get brokers into the festive spirit, it will also be a fun way to end 2010.
“Although the competitions are light-hearted, it will be for a good cause, so I urge all brokers to spare five minutes every day to enter our competitions and help raise money for charity.”
