Company not clearing f&f amount and not replying to email

I resigned from company on 1st June by intimating them my last working days on 31stJuly after 60days notice period. But company same day decided that resignation date is my last day. So I handed over all my asset to company and send Them no dues firm fir settlement. Now I send a mail and asking about my no dues status so that I check and cleared then dudn't reply me but on call he gave me information that your boss hold your F&F settlement due to one of my team member complain received from client and my team member accept it but my name not involved in complain but due to some monetory settlement with client company hold my F&F. So please suggest me how I handle this sutuation and what is my obligation to pay money to client if not a single complain against from client and from company before my last working days.