That doesn’t sound correct. Is there more?

This looks suspiciously like Russian English.

Делай что сказано, а не то...

This looks suspiciously like Russian English.

Не-е-е. fix you up - это что-то английское.
https://idioms.thefreedictionary.com/fix+you+up

“...or I’ll FIX you” makes sense, but as an unpleasant consequence/warning, “fix you UP” doesn’t make sense.

I don’t imagine Pavel would be willing to fix us up with a context?

https://www.yourdictionary.com/fix-someone-up
https://www.urbandictionary.com/define.php?term=fix%20you%20up
https://www.ldoceonline.com/dictionary/fix-up

насчет данного контекста не знаю.

https://translate.academic.ru/%D0%B7%D0%B0%D0%B4%D0%B0%D1%82%D1%8C%20%D1%82%D1%80%D1%91%D0%BF%D0%BA%D1%83/ru/en/

I know what it means, but it’s not a “bad” thing. In this context, we usually see an unpleasant consequence: “Clean your room or I’ll ground you for a month.” What kind of consequence is “fix you up”?

Ah! Russian English!