Origin are currently doing a “BEST OF 2011 BUY 2 GAMES FOR 50% OFF”… and wait until you see the prices of The Sims 3 Ambitions and Generations, which were £24.99 upon release, and are different prices if separate, they are both being sold for £39.99..
Ignore these prices, as they are a mistake. Simply add them both, and the correct prices will show. So you can either buy Ambitions for £19.99, and add Generations for £2.29… or get Generations by itself for £24.99, pay extra, and don’t get Ambitions. Basically, use the sale to get your order if you’re going to purchase The Sims games!