Worst courier experience

My parcel was handed over to your courier company on the 19th May 2020. After receiving no contact and limited movement of the parcel via the online tracking service, I reached out to Dawn Wing last week Thursday 28 May 2020. I spoke to one of your consultants who ENSURED me that my parcel will definitely be delivered by Monday 1 June 2020 – according to your automated voice message all calls are recorded so please go and have a listen to that. I obviously did not receive my parcel by Monday as promised. I then contacted Dawn Wing on Monday 1 June 2020, twice my call was answered, I gave my tracking number and my call was disconnected both times. (which i find to be absolutely disrespectful and pathetic service on your behalf) The 3rd call I made, I spoke with Chomtel – amazing consultant who had informed me that this was a problematic parcel, which should have been delivered already. She said that she had directed my query to a manager (I do not recall whom). I still have had no feedback from Dawn Wing after this was escalated. I called Dawn Wing again today, all thy could tell me was that my parcel was at the Westrand branch and was scanned into the cage – information I ALREADY KNOW FROM NUMEROUS ATTEMPTS TO GET DELIVERY AND TRACK MY PARCEL. I have tried and tried with Dawn Wing with no success. Please direct my query to someone who will assist me today. I want that parcel delivered to me by tomorrow latest and if not, I request to speak to your legal team as surely Dawn Wing will be held liable for the cost of my parcel. I look forward to your urgent response!