Apologies if I was informing the informed.
My point was about using terminology such as Eurocontrol charges. I hope the lawyer in you appeciates my objection to the incorrectness of such terminology.
Whether a service was provided or not, the rules say you pay when IFR and above a certain weight, not whether you did or did not receive a service. Whether that's fair or not is another issue. Perhaps one might relate it to whether the law is always fair?
As to whether Eurcontrol will sue - well, they do have a legal department dedicated to recovery of cost through the legal channels, and I know they have impounded (very large) aircraft when companies have not come up with the readies.
GB