Whenever a party is required to satisfy the Registrar that a copy of a referral, objection or other document has been served on another party, the party so required must provide the Registrar with—
| (a) | a copy of the proof of mailing the referral, objection or other document by registered post to the other party; |
| (b) | a copy of the telegram, telex or telefax communicating the referral, objection or other document to the other party; |
| (c) | a copy of a receipt signed by the other party or on that party"s behalf if the copy of the referral, objection or other document was delivered by hand; or |
| (d) | a statement confirming service signed by the person who delivered a copy of the referral objection or other document to the other party. |
