Interim tolls
232 If the Commission has made an interim order authorizing a company to charge tolls until a specified time or the happening of a specified event, the Commission may, in any subsequent order, direct the company (a) to refund, in the manner that the Commission considers appropriate, the part of the tolls charged under the interim order that is in excess of the tolls determined by the Commission to be just and reasonable, together with interest on the amount to be refunded; or (b) to recover in its tolls, in the manner that the Commission considers appropriate, the amount by which the tolls determined by the Commission to be just and reasonable exceed the tolls charged under the interim order, together with interest on the amount to be recovered.
Source
https://laws-lois.justice.gc.ca/eng/acts/C-15.1/section-232.htmlCanonical document at the regulator. Always cite this URL — not the Vantage detail page — in compliance evidence.