Yes, Fanball can help with this.
When logged in to Fanball, go to the top right corner of any screen and click on your personal account widget. Click the “Account Settings” tab in the drop down menu that appears. On the next page, click “Settings” at the top of the screen, then click “Responsible Play” in the menu that appears.
You may choose to put a complete halt on all contest entries and play, or to set limits on how much you may spend within a certain time period (for example, you may restrict yourself to $100 in deposits per month). These limits may be further restricted at any time by contacting customer service, but may not be loosened for 30 days, or 90 days for residents of Indiana, Ohio, or Massachusetts.