Unlawful termination of employment

I have received sack treaths from my superior, so I unwillingly resigned to avoid a sack history in my career. Do I have right to sue or be protected?

A new company taking over a liability ( with the terminal benefits from the former company inclusive) and refused payment for 4years plus and counting ..

The employee resigned and benefits had not been paid by the company after three months.

What can I do if my employer refused to call me back after serving suspension