The applied law when the employment agreement is not approved

I was the CEO of a private office & group of companies owned by one of Abu Dhabi Sheikhs. My visa was issued for the private office and it was for three years.

We both signed a special employment agreement. The agreement was not filed or approved by the Labour Department. I had no labour card. Also, my payroll was not paid through the Wages Protection System of the Labour Department.

Does the labour law apply to any dispute with the employer or we should see the provisions of the employment agreement?