Help is Here When You Need It
We're happy to provide assistance! We also welcome your comments at any time. A GfK staff member will respond to your query as quickly as possible.
To get support by email, send messages to:
To speak with a Case Manager, call: 1-800-782-6899 between 9AM and 9PM on weekdays, and noon to 5PM on weekends, anywhere in the Continental United States.
To receive a response by mail, write to us at:
To fax your question send it to: 1-908-497-8004
To log in to Members' Web site: