Not necessarily true that the BBB is useless. I had a realty company try to stiff me on a payment for working on a property, so I made a complaint to the BBB. They told me that they could do nothing and was not a collection agency (I knew that but was really PO'd at the realty co and wanted to cause them grief anyway I could) But they documented it and sent the realty co a copy...They was on the phone apologizing their butts off and told me I could come pick up a check right away!!!
Lots of people hold the BBB in some sort of mysterious scary way and contact from them opens their eyes. They could lose business because more n more people check your rep with the BBB.
I got my single highest paying job to date for no other reason than I was a member. My bid was higher than the other guys, but I got the job because I was a member in good standing and they were not.
Give that ol BBB wheel a spin. It doesn't cost anything to complain.