A party may amend an itemised costs account or a Notice Disputing Itemised Costs Account by filing the amended document with the amendments clearly marked:
(a) at least 14 days before the date fixed for the assessment hearing; or
(b) after that time with the consent of the other party.
Note 1: A party amending an itemised costs account or Notice Disputing Itemised Costs Account may apply for an extension of the time mentioned in paragraph (a) (see rule 1.14).
Note 2: The only items that may be raised at an assessment hearing are those items included in the itemised costs account or Notice Disputing Itemised Costs Account (see subrule 19.32(2)).