Customer service agents lies to customers

lies to customers. Not one of the 3 agents I spoke to told me the same story each one told me a different reason why my parcel was not delivered. The last one was the worse after holding for more than 7 minutes to be able to speak to an agent she actually told me that she can't escalate my complaint because the managers are not taking calls and then promptly cut me off. I wonder if Shein knows that this company is costing them business?