Illinois Statutes Chapter 815. Business Transactions § 140/9. Penalties

(a) Any credit card issuer who knowingly violates this Act is guilty of a Class A misdemeanor.

(b) No credit card issuer who violates this Act, except as a result of an accident or bona fide error of computation, may recover interest, annualized membership fee or participation fee or charge, late payment charges, minimum finance charges and over the limit charges in connection with any credit card issued.

(c) A credit card issuer who complies with or is exempt from the applicable disclosure requirements of the Truth in Lending Act  1 and the regulations promulgated under that Act shall be deemed to be in compliance with or exempt from all of the provisions of subsection (a) of Section 6 of this Act.