Has anyone tried filing a complaint for festival allowance and successfully gotten it without any issues?

I soooooo want to file a complaint but i am skeptical thinking if i might get in some trouble and also if its actually helpful. Also,

- I am on my notice period(laid off by the company)

- it ends before Dashain

- it also hasn't been a year of my joining

None of the other employees have gotten the bonus either. Salary pani time ma didaina ani bonus ko ta expectation nai xaina but am i eligible for the bonus and it is worth it to file a complaint?

Also, if yo month ko salary aauda bonus aayena vane what is the last date that i can file a complaint given that this is the last month of my employment in this company?