Four Star Hotel "Losing" Guest Items, Then Ignoring For Weeks

I forgot an item in the hotel when I checked out. Immediately the same evening I contacted the hotel to alert them. For the next few days I went back and forth to and from the hotel, from pillar to post trying to get my item back to no avail. I have been communicating with them for weeks and was promised reimbur*****t by the manager and the housekeeping supervisor - who spends much of the time ignoring my email. I have resorted to review them herein. Such a prestigious establishment to be so poorly managed. I do not understand how the hotel "lost" my item when they confirmed they saw it.