There appears to be a lot of discussion on wether these frequency allocation fees are legal or not. Some law suites of citizens against state are underways. Sorry to bother with that strange language, but you find a discussion and further links to the issue under
https://www.pilotundflugzeug.de/foru...,01,20,3304409 . It appears the Teutonics have an increasing problem to obey their own laws given and authorities ignoring jurisdiction at all (just recently heard rumors the german Federal Chancellor may break the law herself by her current refugees politics) ... no good sign for the state of that country.