Blatant unprofessional ***** to shut the customer up!

Wow have never experienced such incompetence from a service provider before so well done The Courier Guy. So i called them on *** on the 23/04/2020 and was put through to the Joburg branch as my parcel was there. Spoke to a lady who told me that yes indeed my package had arrived and because drivers where out it would be delivered on the 24/04/2020. Called on the 24/04/2020 to the Joburg branch and was told that my package hadn't been put in the days deliveries and as a result it was left behind and that it would be delivered on Tuesday the 28/04/2020, and that they apologize because they working on skeleton staff and that the people who where dealing with my package were new staff. Explained to them that i need that wifi sim because am behind work and need it to work through out the weekend, then was told they would call me so they can organize something as it was their fault. Then received a call from some white guy who told me that they would do a express delivery before 10am on the 25/04/2020. So at 12am on the 25/04/2020 i called them on *** and after holding for 12 minutes spoke to gentleman who told me there is nothing about a express delivery on the system because no payment was made for that and delivery would be on Tuesday and my phone cut before i could get his name. And off course he didn't call me back. What annoys me more than anything is that they **** to me on 2 occasions and do not know if this is what they resort to just to end the call. Now as a result am days behind on my work and no package still. Why play with me and lie to me about something and turn around and do the complete opposite. As a result on my side i have made promises that i would submit work today which now i cant because i have no sim and will look like a **** myself. Wow.