no.
[815 ILCS 205/4.1a(f)].
"if the agreement governing the loan so provides, for each loan installment in default for a period of not less than 10 days, a charge in an amount not in excess of 5% of such loan installment. Only one delinquency charge may be collected on any such loan installment regardless of the period during which it remains in default. Payments timely received by the lender under a written extension or deferral agreement shall not be subject to any delinquency charge."