17.— (1) Where a notification is required to be given by the Commission under this Part to a premium rate service provider, it shall be in writing and addressed to the provider and shall be given to the provider in one of the following ways—

(a) by delivering it to the provider,

(b) by leaving it at the address at which the provider carries on business,

(c) by sending it by post in a pre-paid registered letter addressed to the provider at the address at which the provider carries on business,

(d) if an address for the service of a notification has been furnished by the provider, by leaving it at, or sending it by pre-paid registered post addressed to the provider to, that address, or

(e) by sending it by means of electronic mail or a facsimile machine, to a device or facility for the reception of electronic mail or facsimiles located at the address at which the provider carries on business or, if an address for the service of a notification has been furnished by the provider, that address, but only if—

(i) the sender’s—

(I) facility for the reception of electronic mail generates a message confirming a receipt of the electronic mail, or

(II) facsimile machine generates a message confirming successful transmission of the total number of pages of the notification,

and

(ii) the notification is also given in one of the other ways mentioned in any of the preceding paragraphs.

(2) For the purposes of subsection (1), a company registered under the Companies Acts is deemed to be ordinarily resident at its registered office, and every other body corporate and every unincorporated body is deemed to be ordinarily resident at its principal office or place of business.

(3) A copy of a notification, which has endorsed on it a certificate purporting to be signed by an officer of the Commission stating that the copy is a true copy of the notification may, without proof of signature of that person, be produced in every court and in all legal proceedings and is evidence, unless the contrary is shown, of the notification.