I was told by UPS Chat the only way I could correct a misdirected shipment was to change My Choice to the mistaken address. I did, and My Choice stopped working.
2 months ago I called customer support to have this corrected, and was told the supervisor would get back to me. Well, after 2 months and no response I called again.
Customer support checked with the supervisors and said they can tag my case with an "Escalation", but could not say if or when a response would be forthcoming.
UPS brags about "logistics", but when it comes to their complaint resolution process, apparently things can stay on the shelf for 2 months or longer. UPS=UPofS