Settings (top left) then there is a menu option “Link with Homey app”.
But do know that Duux has stopped supporting Homey for a while now, so there is a big chance your threesixty is too new, and isn’t supported in the app.
You can try to use the Tuya cloud app, but that is a lot bigger hassle to get right. (read the corresponding topic for more information)
as for their homey support mail, they disabled it probably, if you want to talk to Duux use their generic support mail.
