Having Trouble Finding My Package

I placed an order on Shein on July 6 for a lotion called Maelys Get Dreamy, to be delivered to my address in Panorama City. The order shows as “Shipped” in my Shein account with the order number GSU18412Q001RS9 and a delivery date of July 9, but I still have not received my package even though it has now been about two weeks since the stated delivery date. When I checked the FedEx tracking information, FedEx informed me that the delivery tracking number they have is not the same as the tracking number I was given, so they could not help me locate the package. In other words, the tracking information connected to my order does not match, and I have no package at my address despite the system showing it as delivered. I contacted Shein customer service about this issue, and I was told that they would send me an email, but I have still not received any follow‑up or solution from them. I have now been left without the product I paid for and without any clear update. I request that Shein either reship my complete order so that I receive the lotion I paid for, or issue me a full refund for this purchase as soon as possible.