I had to spec out the 80 computers the company bought for the BBB. As a national provider, we were notorious for hundreds of billing complaints, particularly for not refunding prepayments. We became a member and were suddenly in good standing. I wouldn't have believed it, but I lived it. As with most things in this world, follow the money. The BBB is also not regulated or subject to oversight.

They tried to recruit you because they live on the membership dues paid to them.

http://badbusinessbureau.com/reports/ripoff1343.htm