I guess i better post this before there hit thousand of supporttickets the support team. This is the Answer that i got:
Our developers are currently fixing this issue. If you have accomplished the 10th win in battle you'll get one more box as soon as this is fixed. We'll announce this on the web when the it is fixed.
Thank you.
-soblueGM
(08.30.2012 19:47:01 PST)