An employer refuses to give an employee his labor dues after waiting for 6 months

Dear sir/madam,

I served my 2 months notice and resigned on the 12th of August as I was supposed to leave the country on the 14th of August during peak COVID time with my dependents.

However, I had to ask for a 1-month extension which would be served with my annual leaves as during peak COVID times, the flights would get canceled without notice. My manager and the HR were kept in the loop and my HR sent me a work permit cancellation letter which I signed and submitted upon confirmation from my manager.

Later when I enquired, my HR said that I am absconding and would receive my settlement after 6 months so I waited. Now after 6 months, on inquiry, HR calls my manager and asks him to inform me that I won't be paid anything as I am absconding.

Now my question is when I have kept everyone in the loop, my manager, the HR with all the steps, how can I be declared absconding.

I have all the emails and chats as proof and would like to know where do I stand legally?