(1) If a person who files a caveat mentioned in rule 3066 (2) (a) or (b) in relation to an estate knows that someone else is making or intending to make application for grant of representation for the estate, the person must serve a stamped copy of the caveat on the other person as soon as possible, but no later than 7 days after the day the caveat is filed.
(2) If a person who files a caveat mentioned in rule 3066 (2) (c) in relation to an estate knows that someone else is distributing or intending to distribute the estate, the person must serve a stamped copy of the caveat on the other person as soon as possible, but no later than 7 days after the day the caveat is filed.