Talk to a person, not a form.
Azimuth is built by one person. Email works better than a contact form ever will.
Bug reports, confusing moments, feature requests, licensing questions — all of it goes to the same place and gets read.
Before you write
If you're stuck on how something works, the DJ deck guide and the other instrument guides answer most of it directly. If it's a bug, saying what you loaded, what you did, and what happened instead of what you expected is worth more than a screenshot.