There's something I really, really, really don't understand

Here's the story.

I accidentally bidded on a 400k amulet for 800k which is double the last bid price (400k), so I thought that is going to burn and I'm losing 400k
Then, to my surprise, I received a refund of 400k because the last bid didn't move much.

But then my bro bidded on a 50k bracer for 200k. He should have received 150k aprox. as a refund, yet in the end the auction house showed up "200k-bid". In short, he paid the ceiling price of the bid.

Can somebody explain to me what is going on? Why I get a refund, but he didn't? Did they change something? Bugfix? Bugged?

This post has been edited by Sophiera: Jul 12 2012, 05:44 AM

Oooooh now I understand. Thanks guys, you're really helpful