Global Referral Network review: No service as promised for payment

I sent this company took $1500 in October 2007 for leads that I never received. I am a local realtor always looking to expand my business. This company promised to send me 50 leads over a 6 month period of people looking to relocate to Vancouver, Canada. I did not receive one viable lead and have not heard anything from them in almost nine months. They refuse to answer my emails or return my phone calls. I feel I have no choice but to sue. DO NOT USE THIS COMPANY!