My items cannot be traced and found

My items were sent on the 24th of December 2021, and only being told today(7 February 2022) that they cannot be found. After trying to trace and call for so long and they tell me they cannot replace my expensive items I paid money for my items and paid for the courier service as well This is very unfair and have been using Aramex for many times but I have never experienced such service They have lost a customer in me because I cannot accept that they cannot reimburse for my shipment.