If the employee leaves within a set period (often the three-month probation period), the agency will either replace them for free, or refund the fee paid (or in some cases, a percentage of the fee paid). Typically the rebate period is: Up to 4 weeks: A new applicant is supplied free of charge or a rebate of 100% of the fee. 5-8 weeks: A rebate of 40% of the fee. Week 9-12: A rebate of 20% of the fee. We don’t use rebate periods.  In fact, we will only charge a fee once the following milestones are met: 1st day of work = 1/3 of the fee 3-month anniversary = 1/3 of the fee 6-month anniversary = 1/3 of the fee / remainder of fee