815 ILCS 505/2P

Offers of free prizes, gifts, or gratuities; disclosure of conditions. It is an unlawful practice for any person to promote or advertise any business, product, utility service, including but not limited to, the provision of electric, telecommunication, or gas service, or interest in property, by means of offering free prizes, gifts, or gratuities to any consumer, unless all material terms and conditions relating to the offer are clearly and conspicuously disclosed at the outset of the offer so as to leave no reasonable probability that the offering might be misunderstood.