I can see the urgency of getting this resolved, bricarter.
I appreciate your efforts reaching out to our support, and I'm taking note of the feedback regarding your experience. Right now, we’re receiving high callback/chat request volume due to tax season, so waiting time may be increased.
I know you already contacted them but since this is a public forum, I recommend contacting them again, as they can pull up and check your account in a secure environment. One of our support agents can take a look at the case number and review the notes you have from your previous contact to continue where the last agent left off. This way, you won't be repeating yourself.
Additionally, to learn about how QuickBooks Desktop populates the lines on 941 forms, see this link: 941 Overview.
As always, please let me know how this goes or check back if you need any other help with QuickBooks. We're here for you. Take care and have a great day.