Aramex Couriers — unprofessional service

One of the shipment from my Axis bank did not delivered to me. Aramex Company Oman representative did not contacted the customer. After inquiring from Axis bank, i received a reply stating that courier company returned the shipment. How a Courier company can accept a shipment without any contact number or email address. If it's a Postal Address given by the bank, how or whom they contacted for the same.