I contacted Schubert USA looking to find a place where to buy a spare visor for my helmet. I received an email the next day asking me for the manufacturing date of my helmet. I provided the information and they are sending a new visor for free. This visors retail for over $100.
This is cool, excellent product with better costumer service.

I tried that, they sent me to revzilla. Seems they don't like my C3 Limited Edition Carbon Fiber because its a non-US helmet (can't buy them here). I can't even registered it by serial number on the Schuberth USA website. LOL.