Yeah I managed to dodge them for a solid decade and then eventually moved away. Back then it was alright, they had no rights to demand entry just like in the UK, plus if you moved house you could instruct the city hall where you register your residency to put an address block in place (usually used for stalking victims and such, but there is no law forbidding average citizens from using one). That put your name on a blacklist denying access to your whereabouts to anyone but electorate campaigners and the tax office. So the TV fee people knew that I moved (since previous mail bounced), but had no means of getting my contact. I believe nowadays since they qualify as an actual tax they might be legally able to get the data regardless.