Aramex Couriers — Package delivery taking too long time.

I have done courier on 2nd saptember from Kuwait to Ahmedabad-India with tracking no [protected], it's reached Mumbai-India and then they change tracking no to [protected]. It has been more than 10 days and since I had not get delivery. There were important documents which were required urgently but Aramex is failed to delivering. Please do need full for same and urgent as early as possible.