If it’s less than 2 years since you were made redundant you are entitled to unfair dismissal. 2 months is ridiculous. Not only that, the company had to submit an employee count of staff who would be eligible/paid jobkeeper, and for them to submit a number that includes your position and benefit off that and let you go unlawfully regardless is simply inexcusable. You’re almost obligated to take that further in order to protect both yourself and other employees of that company as well.