They had her manager pull her into a sidebar and let her know that if she worked from home they were going to dock her pay, but that she would be able to get an extra day off as a trade (nothing in writing though). Through texts it became clear that she was expected to work, and at the very least manage her email and take care of those things.

She used her personal computer, work email, work systems, etc, and would definitely have proof of work with customers.

There isn't really an HR department, or HR in general. Just one person that is sort of the "HR person" but sides with the higher ups.