I'm sorry to say this, but you have been scammed like many others.

Limewire basic is free and Limewire Pro only costs $18.88 (with 6 months of free updates)

Get it at official site

www.limewire.com

The program you got may be bundled with spyware and other nasty stuff so you would be better of deleting it from your computer.

Try to get a refund or stop payment. More in this thread about the subject:

Get your $$$ back

More info here:

Membership? - **WARNING ** BEWARE** - Download p2p Clients ONLY Thru Official Sites

Good luck