BrokerPriceOpinion.com review: non payment of fees for services rendered

BrokerPriceOpinion.com or FirstValuation.net are scamming US real estate professionals. They request BPO services, but do not pay in a timely manner. I have a unpaid BPO from September 2013 (one year ago). No amount of calling or emailing gets any pay result. The only information offered is that they expect to be able to pay in a few weeks -- then months go by without any explanation. I suggest every real estate professional that has been a victim of BrokerPriceOpinion.com file a complaint with the Colorado Better Business Bureau, the Colorado Attorney General's office, and with NABPOP.