ABC News investigated numerous complaints from across the country to find that the bureau bumps up grades in exchange for cash.
The owner of a Los Angeles antique store says she was told she had to buy a membership if she wanted to raise her grade. After she paid her "C" rating became an "A-plus."
The California attorney general calls the rating system unreliable.
The president of the Better Business Bureau denies that the agency runs a pay-to-play scheme.