sentence to make restitution shall be revoked unless the court shall find that the offender has had the financial ability to make restitution, and he has wilfully refused to do so. When the offender’s ability to pay restitution was established at the time an order of restitution was entered or modified, or when the offender’s ability to pay was based on the offender’s willingness to make restitution as part of a plea agreement made at the time the order of restitution was entered or modified, there is a rebuttable presumption that the facts and circumstances considered by the court at the hearing at which the order of restitution was entered or modified regarding the offender’s ability or willingness to pay restitution have not materially changed. If the court shall find that the defendant has failed to make restitution and that the failure is not wilful, the court may impose an additional period of time within which to make restitution. The length of the additional period shall not be more than 2 years.

a probation or court services department after January 1, 2004, as a condition of such probation or conditional discharge or supervised community service, a fee of $50 for each month of probation or conditional discharge supervision or supervised community service ordered by the court, unless after determining the inability of the person sentenced to probation or conditional discharge or supervised community service to pay the fee, the court assesses a lesser fee. The court may not impose the fee on a minor who is placed in the guardianship or custody of the Department of Children and Family Services under the Juvenile Court Act of 1987 while the minor is in placement. The fee shall be imposed only upon an offender who is actively supervised by the probation and court services department. The fee shall be collected by the clerk of the circuit court. The clerk of the circuit court shall pay all monies collected from this fee to the county treasurer for deposit in the probation and court services fund under Section 15.1 of the Probation and Probation Officers Act [730 ILCS 110/15.1]. A circuit court may not impose a probation fee under this subsection (i) in excess of $25 per month unless the circuit court has adopted, by administrative order issued by the chief judge, a standard probation fee guide determining an offender’s ability to pay Of the amount collected as a probation fee, up to $5 of that fee collected per month may be used to provide services to crime victims and their families. The Court may only waive probation fees based on an offender’s ability to pay. The probation department may re-evaluate an offender’s ability to pay every 6 months, and, with the approval of the Director of Court Services or the Chief Probation Officer, adjust the monthly fee amount. An offender may elect to pay probation fees due in a lump sum. Any offender that has been assigned to the supervision of a probation department, or has been transferred either under subsection (h) of this Section or under any interstate compact, shall be required to pay probation fees to the department supervising the offender, based on the offender’s ability to pay. Public Act 93-970 deletes the $10 increase in the fee under this subsection that was imposed by Public Act 93-616. This deletion is intended to control over any other Act of the 93rd General Assembly that retains or incorporates that fee increase.