I was at a friend's today. Her DP bought her a top for Christmas and it didn't fit. They took it back today and swapped it for one in her size, but it's now in the sale so £10 cheaper. She thinks he should get her something else with the £10 he's saved. He thinks she's got the same top, and as he paid for it before Christmas the price difference doesn't matter. I can see both sides, but honestly they were bickering over it all night! Who's right do you think? Should she get another present worth £10 or is about the worth before the discount?