US Airways Dividend Miles (Pre-FlightFund Merger) - Where to send unused DMUT?

I have a pair of unused envoy upgrades from this year that I won't use by the end of January. It says to mail them into the NY service center to get the mileage credit but it has no address. Is this supposed to just be the general address down in NC? If anyone knows the right address I would apreciate it.

Thanks!

I sent mine to:

US Airways
Dividend Miles Service Center
P.O. Box 5
Winston-Salem NC 27102-0005
USA

They posted recently, so that address works.