The best thing to do is to contact our customer service directly at https://helpcenter.galaxus.ch/hc/de/requests/new. Your request can then be examined individually.
I returned the system, not because of the quality, but because it only runs on batteries in this form. I thought that was unecological and an additional power supply unit is too expensive in relation to the price of the racetrack. The range is compatible with the Carrera tracks.
I ordered another, somewhat more expensive offer with a power supply unit.