A document is effectively provided, served or given to a person under these regulations if –

(a) in the case of a natural person, it is –

(i) given to the person; or

(ii) left at, or sent by post to, the person's postal or residential address or place or address of business employment last known to the server of the document; or

(iii) faxed to the person's fax number; or

(iv) emailed to the person's email address; or

(b) in the case of any other person, it is –

(i) left at, or sent by post to, the person's principal or registered office or principal place of business; or

(ii) faxed to the person's fax number; or

(iii) emailed to the person's email address.