The full extent of these payments was allegedly not disclosed to members, nor were members aware that the union was steering them into the ING plan with biased investment advice.

FORBES: SEC Snoozed As "Shadow Marketers" Skimmed Billions From Retirement Plans

Parent ING Group, based in Amsterdam, has previously announced its plan to divest ING U.S. through an IPO.

FORBES: ING U.S. To Rebrand As Voya

Consumerism Commentary readers responded, for the most part, by stating they plan on closing their ING Direct accounts in protest.

FORBES: ING Direct Becoming Capital One 360