18.A person described in paragraph 4 of section 13 must pay the toll at the time of passage on a designated infrastructure whose installations allow the toll to be paid at that time.
18.If a toll charged for operating a road vehicle on a designated infrastructure or any administration fee is not paid within 30 days after the day it is payable, the partner may send to the person responsible for the payment of the toll a default notice for failure to pay the toll
(1) setting out the amount due, including the administration fees and the interest rate charged ;
(2) informing the person that he or she may apply for the cancellation of the default notice on a ground referred to in section 19 ; and
(3) informing the person that if he or she applies for the cancellation of the default notice,
(a) the person must send an application for cancellation to the partner within 30 days of receiving the default notice and state therein the grounds for the application ;
(b) the person bears the onus of proving the grounds on which the application for cancellation is based ; and
(c) the toll, fees, charges and interest set out in the default notice shall be deemed to be paid if the partner fails to send a decision, with reasons, to the person within 30 days of receiving the application for cancellation.