Lord of the Rings posted this a few days ago:
"Then email them using
feedback@limewire.com & make sure you title your email appropriately so they know you were a pro user otherwise they'll ignore it if they know you're no longer a pro user. Supply your details in the actual email."
I would have thought that if you gave an invalid e-mail address that limewire would have seen that and cancelled the purchase, but a/ it could take a few days for that to happen abd b/I could be totally wrong.
My question was to ascertain you had purchased Limewire from limewire.com as there are a lot of scam memberships being sold as a quick scan of the forums will tell you.
Hope this helps