Vitus USA retailers from their web site.
United States
3mA Audio
United States
Cake Audio
United States
Stellar Home Audio
United States
United Home Audio
https://www.unitedhomeaudio.com
please ask who in the USA services the unit if it needs repairs.
FYI: When buying a Vitus Audio product through an unauthorised channel or on the second-hand market where no transfer of ownership is possible.