s 120C Service of notice under section 120B : additional requirement
(1) This section applies if— (a) notice under section 120B demanding the payment of rentcharge arrears is served in compliance with the requirements of section 196(3) or (4), but (b) the place of abode or business at which the notice is left, or to which the notice is sent, in compliance with those requirements is not the charged land. (2) The notice is sufficiently served only if (in addition to complying with the requirements of section 196(3) or (4))— (a) it is affixed or left for the landowner on the charged land, or (b) it is sent by post in a registered letter addressed to the landowner, by name, at the charged land, and if that letter is not returned by the postal operator (within the meaning of Part 3 of the Postal Services Act 2011) concerned undelivered; and that service shall be deemed to be made at the time at which the registered letter would in the ordinary course be delivered.