Refund from Unwrap3d by Paypal???

Hi all,

I tried to buy unwrap3d via Paypal yesterday (21 Oct 2007).
After one hour, I got an email saying that a refund issued from unwrap3d.

Is it because the price of newest version 3.0 is different from the previous version?
What's going on???
What should I do?

Thanks in advance
:)