3.—(1) If an instrument differs in an immaterial respect in form or mode of expression from the form specified under paragraph 1(1)(a), it is to be treated by the Public Guardian as sufficient in point of form and expression.
(2) The court may declare that an instrument which is not in the form specified under paragraph 1(1)(a) is to be treated as if it were in that form, if the court is satisfied that the persons executing the instrument intended it to create a lasting power of attorney.