Theft - Stole my goods and never tried to even sort it out.

I manage a small business online and use Aramex's dropbox service to deliver my orders. I would have opened a contract with them, but their agents seemed uninterested in giving me a callback or starting a contract. Now, on the 18th of August 2020, I shipped out numerous orders and used the DropBox service in Pick 'n Pay. Mind you, all the customers had their orders shipped, but one. The parcels needed two bags and thus I filled in two bags with the same details on the waybill. The one had gotten delivered and the other did not. I called in numerous times to Aramex to the inquiry where the parcel went, and each time I received a sincere apology and that they will escalate the matter. This has been ongoing since the beginning of September. One call agent gave me her email address, Patience, to send the waybill info along with the details of how I dropped off the parcel, and the appalling part is the email address she provided me with DID NOT EXIST. An agent name Suzanne was or probably is supposed to handle my case, and since I sent in a complaint about the parcel being ******, after her courtesy call I have not heard back from them since. So, now I am stuck with an unhappy customer, R1000 worth of goods lost or most likely ******, and a courier company who does not care in the least to do anything about it. I am now going to take out a police case against Aramex as this is now a theft case. Thank you for your poor and appalling service. I will definitely be opening up contract with a more reliable company.