DOMICILIUM CITANDI ET EXECUTANDI 19.1 The parties choose as their domicilia citandi et executandi, for all purposes under this agreement, whether in respect of court process, notices or other documents or communications of whatsoever nature (including the exercise of any option), the following addresses: 19.1.1 The Service Provider: Physical: Postal: Tel: 19.1.2 The Municipality Physical: Postal: Tel: Fax: 19.2 Any notice or communication required or permitted to be given in terms if this agreement shall be valid and effective only if in writing but it shall be competent to give notice by telefax. 19.3 Either party may by notice to the other party change the physical address chosen as its domiciliumcitandi et executandi to another physical address where postal delivery occurs in the Republic or its postal address or its telefax number, provided that the change shall become effective on the 14th (fourteenth) business day from the deemed receipt of the notice by the other party. 19.4 Any notice to a party - 19.4.1 sent by prepaid registered post (by airmail if appropriate) in a correctly addressed envelope to it at an address chosen as its domiciliumcitandi et executandi to which post is delivered shall be deemed to have been received on the 14th (fourteenth) business day after posting (unless the contrary is proved); 19.4.2 delivered by hand to a responsible person during ordinary business hours at the physical address chosen as its domiciliumcitandi et execitandi shall be deemed to have been received on the day of delivery; or 19.4.3 sent by telefax to its chosen telefax number stipulated in clause 19.1, shall be deemed to have been received on the date of despatch (unless the contrary is proved). 19.5 Notwithstanding anything to the contrary herein contained a written notice or communication actually received by a party shall be an adequate written notice or communication to it notwithstanding that it was not sent to or delivered at its chosen domiciliumcitandi et executandi.