The worst experience ever with rude consultant

This is the worst experience ever. First my parcel is delayed without any explanation. I made it my point to do follow up using my own money and time only to be met with absolutely rudeness from a consultant who happened to be a supervisor. I don’t know about other branches but this is the rustenburg branch I’m referring to. I tried calling headquarters office line that is is just a waste of time don’t even bother. I managed to get the Rustenburg supervisor number and I was so hopeful that I was going to get a resolution. Wow she was so rude and disrespectful and so dismissive. She told me I will get my parcel whenever. She is even told me it won’t help me to complain she answers to no one she is even said my parcel can even be delayed by over a month and there is nothing I can do about it. So I asked her for their physical address, then she asked how is it going to help me cause I won’t anyone there. I told her she can’t address me in that manner she screamed in my ear and literally hanged up the phone in my ear. I’m so disappointed in your service but the rudeness to attend to my matter was the top tier that got me to write here. As I’m writing this i still haven’t received my package and there is no telling if I will ever receive it. I ordered these mid march by the way. Shein needs to vet these logistics companies going forward. This type of behaviour is unacceptable at all. No professionalism at all and I can say this because I also work under hospitality and I understand the importance of customer service and satisfaction.