Charles, a while back the exchange started requiring an exchange fee CBOE Indexes.
To add this authorization you can use the form on the following page to add CBOE Indexes exchange fee (or you can contact us via phone/chat):
https://www.iqfeed.net//index.cfm?displayaction=data§ion=account&menu=1&signup=exchangesBy the way, you can always determine if you are authorized for a particular symbol by looking at the delay field in the feed. If that field is populated, you are not authorized for realtime data and it will tell you how many minutes a symbol based on authroizations.