21.1 The parties choose domicilium citandi et executandi (“domicilium”) for the purposes of the giving of any notice, the serving of any process, the payment of any monies and for any other purpose arising from this Agreement, as follows:
21.1.1 Vodacom Commercial Park, 082 Vodacom Boulevard, Vodavalley, Midrand
21.1.2 The Customer –
21.2 Each of the parties shall be entitled from time to time, by written notice to the other, to vary its domicilium to any other address which is not a post office box or poste restante.
21.3 Any notice given by either party to the other (“the Addressee”) which:
21.3.1 is delivered by hand during the normal Business Hours of the Addressee at the Addressee’s domicilium for the time being shall be presumed, until the contrary is proved by the Addressee, to have been received by the Addressee at the time of delivery;
21.3.2 is posted by prepaid registered post to the Addressee at the Addressee’s domicilium for the time being shall be presumed, until the contrary is proved by the Addressee, to have been received by the Addressee on the 4th (fourth) day after the date of posting.