If a person has requested a hearing pursuant to sub. (2) (b), the hearing shall be conducted before the circuit court that rendered the initial order to pay support. The court shall schedule a hearing within 10 business days after receiving a request for a hearing. A circuit court commissioner may conduct the hearing. If the court determines that the person owes the amount specified in the statewide support lien docket under s. 49.854 (2) (b), the department may direct the department of employee trust funds, the retirement system of any 1st class city, any retirement system established under chapter 201, laws of 1937, or the administrator of any other pension plan, whichever is appropriate, to withhold the amount from any lump sum payment from a pension plan that may be paid the person. If the court determines that the person does not owe the amount specified in the statewide support lien docket under s. 49.854 (2) (b), the department may not direct the department of employee trust funds, the retirement system of any 1st class city, any retirement system established under chapter 201, laws of 1937, or the administrator of any other pension plan, whichever is appropriate, to withhold the amount from any lump sum payment from a pension plan that may be paid the person.