8. Unless the court or the parties decide otherwise, the expenses provided for in section 6 shall be divided equally among the parties.
The Commission shall retain the amount of the expenses that must be paid by the spouse from the amounts that are transferred to his name, except where it receives payment before the transfer of those sums.
The Commission shall retain the amount of the expenses that must be paid by the participant from the amount of the benefits that are owed to him, except where it receives payment before the payment of those benefits.