Rights of the employee repatriation after submitting resignation

Dear Mr Ibrahim,

I hope you are doing well.

I resigned on a 30 days notice period & worked from 31.10.2017 to 03.11.2020, now it's the time of settlement.

I have some enquires such as the company deducting visa renewal cost & not giving return ticket also.

So is this legally valid or not?

I need your guidance, please.