Yes, I know my situation was different, but I was sharing it in order to show that you can take a problem to Hermes without being blacklisted (frankly, if any company would blacklist you for contacting them about an order that wasn't delivered, would you want to do business with them again anyway?). Since the package is missing, your first step here is to contact Hermes and explain the situation. See what they say. Hopefully they take it up with UPS and refund your money. While UPS or your apartment concierge appears to me to be at at fault here rather than Hermes, Hermes has a contract with UPS and will get better results from contacting them than you will if you do. If they don't issue any resolution, I would initiate a dispute with your credit card company.