Delayed package

I ordered from Shein and they use Baffalo International Logistics, I paid customs for Baffalo International Logistics. On the 6th of November they sent me an email stating that I would receive my order within the next 78 hours which mean I should have received my package on the 10th of November and I did not receive on that date. Monday on the 13th of November they sent another email stating that I would receive my order between the 13th and the 17th of November and I still haven't received my order as it is the 17th of November today and I needed the package for the 17th of November. The morning of the 17th I called 7 times to their helpline and sent lots of emails on the day but each and everytime I called the call center agents are telling me a different story. On top of that I received another email stating that my order is going back to JHG because the driver was unable to get ahold of me which is a lie because I did not once receive an email stating that my delivery is on its way or the driver is outside with my delivery and no solution is coming up as to what is happening with my order , where else the order is at the Port Elizabeth facility where I am based. During the conversation I had with a live chat I then go and check my order status and email stating that I the client received the package of which I did not receive any package and it's states that I received the package on the 16th of November at 16:00 and they sent that email on the 17th at 09:45 which is not true , now I then call again to ask about the package status saying that I received the package and when the call center agent checks in their systems it says the package is floor checking at the Port Elizabeth facility even so the call center agent did not assist or come up with any solution and when I asked for a Supervisor or someone that is in charge the answer is the supervisor or team leader are not there or available and continues to tell me that there nothing that the supervisor or team leader will do to help me with my problem because the escalation will take 48 hours of which that won't help me in any way because I need my orders delivered on the 17th. I am and and so disappointed with the poor service the Baffalo International Logistics gives to people