In this section and sections 52 to 57—
“relevant postal issues” means the interests of users of relevant postal services in the United Kingdom and matters affecting those interests,
“relevant postal services” means any postal services provided in connection with the provision of a universal postal service and any other postal services which are provided, or authorised or required to be provided, by a licence holder under Part II in accordance with a licence under that Part,
and, for this purpose, services are provided in accordance with a licence if the licence authorises or requires them to be provided by the licence holder.