"1.4 While every effort is made by Airservices to ensure the accuracy of international data contained in Airservices’ charts and publications, international data is based on, or contains, information provided from regional governments or third party sources over which Airservices has no control, and which may not always be completely up to date."
Silly me, I thought the AirServices produced AIP et al was supposed to be reliable operationally valid information.
CC