Genuine Limewire subscriptions last for either 6 months or 1 year and if you subscribed to the genuine article they should have had some record of your purchase.
It sounds a lot like you have been the victim of one of the many scam sites offering various length subscriptions to Limewire. In future be very careful about where you go to get your Limewire versions. There are a few sites who have sponsored links in Google but have nothing to do with the genuine Limewire product. It's probably best to start with the free version and if you want to upgrade to pro to do it through the free product. the geuine site is: Lime Wire » Official Website & Free Download, BitTorrent «