highway vignette when changing the registration mark:

If you have already purchased an e-vignette and you are changing the registration number (for example due to loss), just fill in the Notice of Change of License Plate on edalnice.cz and then send a copy of the large technical card to epodatelna@edalnice.cz, where this change is stated. Alternatively, via the ws5mh9w date stamp or by mail to
SFDI
Sokolovská 278
190 00 Prague 9