Substitution of petitioner allows a creditor or partner to replace an original petitioner when standing or procedural defaults occur. The Tribunal may substitute as petitioner any creditor or partner who, in its opinion, would have a right to present a winding-up petition and is desirous of presenting it where the original petitioner lacks entitlement, fails procedural advertising or appearance requirements, consents to withdraw or dismissal, does not press the prayer of the petition, or where there is other sufficient cause; substitution is on such terms as the Tribunal thinks just and attracts an additional fee equal to half the original petition fee.