StockX Delays Off-White Sneaker Order Despite $60 Shipping Fee

I purchased a pair of Off-White Mid SP sneakers from StockX and paid an additional $60 for shipping because I was promised that my order would arrive within a maximum of one week. However, it has now been 10 days since I placed my order, and I have not received a single tracking update or any information about its status for the past week. When I contacted customer service, the only response I could get was that they would notify me once the order arrived. This is completely unacceptable, especially considering the extra $60 I paid for expedited delivery. I expect StockX to provide a clear explanation for the delay and an accurate delivery date.