815 ILCS 122/2-45: Default.

(a) No legal proceeding of any kind, including, but not limited to, a lawsuit or arbitration, may be filed or initiated against a consumer to collect on a payday loan until 28 days after the default date of the loan, or, in the case of a payday loan under a repayment plan, for 28 days after the default date under the terms of the repayment plan.

(b) Upon and after default, a lender shall not charge the consumer any finance charges, interest, fees, or charges of any kind, other than the insufficient fund fee described in Section 2-10.

(c) Notwithstanding whether a loan is or has been in default, once the loan becomes subject to a repayment plan, the loan shall not be construed to be in default until the default date provided under the terms of the repayment plan.