Randstad India — Harassment, poor service

It's been almost a year since I have been working in Randstad. I haven't got my ID card. They haven't clearly explained about any allowances. While claiming my allowance they give excuses. The worst thing is I have fractured my nose and I am in the hospital. They keep calling me and harassing me for my attendance sheet which was submitted by needed managers approval who is down with covid.
They called me told and asked me if I need my salary Or not. Is this how to behave, I'm in a hospital not knowing wheather I should undergoo a surgery or not. They do this, is this professional in any sort. They have not solved any of my queries and do not know how to behave. Please respond on how to get this issue solved cos I am not happy with how things are going now.