What are my rights in case of termination after completing probation period?

Hi

I completed my probationary 6-month period out of 3 years contract and after 2 months, my company didn’t want me to work anymore and I don’t have a job right now.

They don’t want to terminate me, instead, they want a settlement. They offered me my 25 days pending salary, 2 months accommodation pending allowance and leave pay.

I refused and asked them for money as negotiations but they keep delaying it.

My question is

1. Can I ask for compensation from them while negotiating the settlement?

2. Should I file a complaint against them for not cancelling my visa?

3. Is it good for me to wait for the settlement and wait for the cancellation?

4. Why they don’t want to terminate me?

5. Approximately, how much should I get from the company if I file a complaint for damage?