In the event that any person who has become separated from the service and has had their contributions returned to them under the terms of Section 4.28.200 shall be reappointed to the service as a member of the Police or Fire Department, they shall repay into the fund an amount equal to the sum returned to them at the time of their separation from the service. If such repayment is not made in full within six months from the date of reentering the service, then the amount to be repaid or any unpaid balance thereof shall bear interest at the rate of six percent per year compounded semiannually from the date of such person’s reentering the service until paid; provided, however, that in the event such repayment has not been made at the time of granting of any of the benefits under the terms of this chapter, then such amount with interest as above provided shall be deducted from the benefit before any payment is made from the fund. (Ord. 3558-NS § 32, 1957)