720 ILCS 5/17-47
A person who is authorized by an issuer to furnish money, goods, property, services or anything else of value upon presentation of a credit card or debit card by the cardholder, or any agent or employee of such person, who, with intent to defraud the issuer or the cardholder, fails to furnish money, goods, property, services or anything else of value which he represents in writing to the issuer that he has furnished is guilty of a Class A misdemeanor if the difference between the value of all money, goods, property, services and anything else of value actually furnished and the value represented to the issuer to have been furnished does not exceed $150 in any 6-month period; and is guilty of a Class 4 felony if such difference exceeds $150 in any 6-month period.
720 ILCS 5/17-47