A new report released this week by the Association of National Advertisers makes some bombshell claims about how agencies and media buyers are using rebates and other means to receive kickbacks. Ad agencies, along with the group that represents them, responded fiercely.

According to a new report released by the Association of National Advertisers (ANA) this week, the digital advertising space has a major problem.

That problem? Ad agencies and publishers aren’t being nearly as transparent as they should be, particularly regarding the use of rebates—the promise of discounts from media firms in exchange for certain levels of ad buys. ANA, which represents large companies that purchase advertising, launched a probe into the practice back in October, and worked with K2 Intelligence and Ebiquity/FirmDecisions in putting together the report.

Read the full Associations Now article here.