Boss is randomly threatening termination?

I have been on leave for a month due to Covid 19. Our governor passed a bill stating that any healthcare workers whom are autoimmune or live with an autoimmune person can take leave during this time. My son is autoimmune so I took her up on the offer. My boss was okay with this and even saw me out on my last day. She left me a voicemail Thursday at 11:47am after I have been out for a month stating that she has rejected my leave request and I had until noon to call her and discuss my immediate return to work and if I didn't call her I would be terminated. I didn't get the voicemail until Friday afternoon due to my phone being shut off. Can she even do this? My phone calls have not been returned since.
Boss is randomly threatening termination?
Add Opinion