44.-(1) Any notice or other document required or authorised to be served on any person for the purpose of these Rules shall be deemed to have been duly served if sent by pre-paid registered post to that person at his ordinary address or to his address for service specified in any notice given under these Rules. Any notice or other document required or authorised to be sent to the registrar shall be sent to him at the office.
(2) Any application or communication to be made to the President or to any member of the Tribunal in respect of any case shall be addressed to the registrar at the office.
45. Any party to any proceedings may at any time by notice in writing to the registrar and to all other parties to those proceedings change his address for service under these Rules.
46. If any person to whom any notice or other document is required to be sent for the purpose of these Rules cannot be found, or has died and has no personal representative, or is out of Cyprus, or if for any other reason service upon such person cannot be readily effected in accordance with these Rules, the President or the Tribunal may dispense with service upon such person or may make an order for substituted service upon such other person or in such other form (whether by advertisement in a newspaper or otherwise) as the President or the Tribunal may think fit.
47. Any failure on the part of any person to comply with the provisions of these Rules shall not render the proceedings or anything done in pursuance thereof invalid unless the President or the Tribunal so directs.
48. The fees specified in Appendix C to these Rules shall be payable to the registrar, in respect of the matters mentioned in the said Appendix.
49. Where no provision is made by the Law or these Rules the President or the Tribunal shall have power to give directions on any matter of practice or procedure with a view to saving time or expense but so that no prejudice shall be caused to the parties concerned.
50. These Rules shall apply to any proceeding which is pending at the date on which these Rules come into operation subject to such directions as the President or the Tribunal may think fit to give.
51. Notwithstanding anything in the Law or these Rules, the Law shall not apply to any question or dispute for the determination of the amount of compensation where, before the 29th day of September, 1955, an application was made to a District Court to refer such question or dispute to arbitrators, and the hearing before such arbitrators was begun before the 9th day of February, 1956; and such question or dispute shall be determined by the arbitrators or the District Court as umpire, as the case may be, in accordance with the provisions of the law in force at the time when the application was originally made to the District Court.