I hate to be the bringer of bad news, zuki, but here's a warning from Sharp, the administrator over on Irish Acts, concerning this leech in Erie, Pa. It's a pity that your purchase was already under way before this warning appeared.
http://www.korgforums.com/forum/phpBB2/viewtopic.php?t=29076

I really feel for you zuki, and I do hope this can be resolved and that you're able to get your money back.