A participant shall submit a signed certification of service form and receipts for attendant care services or ongoing additional supports in accordance with the Program's fiscal payment schedule. Reimbursement shall be made in compliance with the attendant care agreement and Regulation .04A of this chapter. The Department may return improperly completed forms to the participant without making payment. The Department may return the certification of service form to the participant without making payment if more than 2 months have passed since the date of service. The Department reserves the right to deny reimbursement of expenses that it determines are not representative of ongoing additional supports or attendant care services.