Sorry with all the media today it's impossible for me to be everywhere. I get Private Messages on different forums, emails, Facebook, texts, instagram, etc.. I purposely let my inbox become full on here because I don't have much time to get on the forum, and thus this is a very inefficient way to to contact me.
Your best bet is contact the RUPES USA HQ by calling 970 535 0100 and asking for service, or shooting an email to
service@rupesusa.com. The Duetto is not a loud tool, or at least not any louder than comparable tools. If it is painful to use because of the noise, there sounds like (pun intended) a problem.
Cheers,
Todd