Welcome to my world. Same thing's just happened to me
Maybe it's something to do with your IP address changing often, if you have a dynamic IP address (that's what I'm assuming in my case).
The helpers here don't work for LW. Have you contacted support via the link on that 'Download Count Exceeded' page?
Contact support & explain the situation. If you don't get a reply within a few days (I don't think they work on weekends) then send a PM to limenathan on this forum by clicking on this link
limenathan (click on link)