Here is what I suggest. Go to a lawyer. Tell him this burger owns you x amount and that you can afford pay to him 30% if he can assign one of his assistents to draft letters in an attempt to collect the money. Payment only if amount is collected. They will forward him a mail and hopefully they will feel thretned and pay you. Get their full information name address phone etc and go to the lawyer. Have the lawyer call the boss too. Let your employer know that you know a lawyer and that he can now expect to hear from him. Just give it a shot but frankly I don't see any worth wasting your time and energy. All the best. The Nepalese association will probably have a lawyer to recommend.