Contact who ever you brought 360Share through and ASK FOR A REFUND!

Limewire is a FREE PROGRAM, Which you can download at Official Website & Free Download - Lime Wire. Never download software's outside of there official websites.

There are also some very good alternatives to Limewire like,

Frostwire.com - Almost the same as Limewire but has no ads and faster download speeds.

Mp3Rocket.com - Again, Almost the same as Limewire but has added featues such as torrent searcher, watch tv channels/games/radio and so on.

aresgalaxy.sourceforge.net - Not the same as Limewire as it runs on a totally differnt network. Its a small piece of software, clean and light but some people get faster speeds and some get quite slow speeds.

You also have Mule products - eMule, aMule, Easymule, DreamMule. They seem to all do the same thing.

Torrents of course - uTorrent, Bitorrent and many more.

Bearshare, iMesh, Sharaza and many more. But you don't ever need to pay for Filesharing. FILE SHARING PROGRAMS ARE FREE.

Hope I helped