"Plus, for a limited time, you’ll receive a $100 Gas Cash-Back Certificate just for trying this optional program! Simply enroll in Credit Protector by 12/31/06. You can cancel Credit Protector at any time and the rebate coupon is yours to keep.

Free for the first 30 days.
After that, the cost for Credit Protector is only 85˘ per $100 of the New Balance shown on your billing statement."

This offer came up when I logged into citicards.com. They usually only offer a $15 statement credit. Seems like a good deal if you can cancel right away.

This offer coupled with an unusually high account activity (I usually spend about 3k a month, versus 10k for this month), so my statement balance was higher than normal. Perhaps this larger incentive is only targeted to people with higher end-of-month balances?