(1) A prescribed court must not make a non - infringement declaration unless:
(a) the applicant for the declaration:
(i) has asked the patentee in writing for a written admission that the doing of the act has not infringed, or would not infringe, the patent; and
(ii) has given the patentee full written particulars of the act done, or proposed to be done; and
(iii) has undertaken to pay a reasonable sum for the patentee's expenses in obtaining advice about whether the act has infringed or would infringe the claim; and
(b) the patentee has refused or failed to make the admission.
(2) The court may make orders as to costs as the court thinks fit.