Maybe you can try this?
http://us.blizzard.com/en-us/company/about/contact.html
There is no reason for this limit anyway, since the file transfers are peer to peer anyway.
Warcraft III is a legacy product. We won't get any updates on it anymore.
But even so, if they change something about it, I hope they won't just extend the limit but get rid of it completely. There is no reason for this limit anyway, since the file transfers are peer to peer anyway.
People still play WC3 on BattleNet? Last time I checked it was a ghost town of robot hosted games filled with tumble weed and the odd map trawler robot.