I regret that you are one of many who have been vitims of scams perpertrated by a large number of web sites. The e-mail sent to purchasers of Pro reads quite differently.
Limewire is available from
http://www.limewire.com/english/content/download.shtml
It is in two versions Basic cost nothing and Pro Cost 18.88$ I advise you to stop payment if it is not too late, or explain to your bank the problem.
http://www.gnutellaforums.com/showth...threadid=40161
is just a small sample of the posts on this subject.