(1) If a referring order deals with ADR costs by setting a fee rate and period for which the rate is to be paid, an ADR convenor or venue provider may recover an amount for any additional period only if the parties authorise the ADR process to continue beyond the period set in the order.
(2) If a referring order deals with ADR costs in another way, an ADR convenor or venue provider may recover an amount that is more than the amount stated or estimated in the order or negotiated only if the parties agree in writing to the payment of a greater amount.
(3) The parties are severally liable for an amount recoverable under subrule (1) or (2) .
(4) The amount may be recovered as a debt payable to the convenor or provider.