I would say that the best place to report it is here :
Type the airport ICAO code of the airport where you have the problem, select it.
In the new page, make sure you select the recommended version (the one with a green tick)
Down the page, in the discussion section, add a comment about the problem. You need to have an account before being able to comment. it's free, quick and easy to have one.
Thank you for your help.