Trouble mailing trade-in device from any Okinawa US Military bases.

Sedd wrote:

syaoran wrote:

You can still ship it in without using the USPS label.  I have never used the label T-Mobile has given me for Trade-ins.  I send it trackable and insured UPS with signature required to ensure my trade-in arrives quickly with proof.  It's a small price to pay to eliminate a lot of potential hassles.  I even shipped a trade-in from up in Canada to Assurant once without any issues because I was visiting family and friends when the deal was live.

Thanks! How do give T Mobile the mailing information?

You don't!  There is paperwork you put in the box with your trade-in.  Literally wrap it around your trade-in, bubble wrap that, put it in the box, seal up the box, copy the receiver's shipping address, put that on the box with your address, and ship it.  Assurant or Asurion will inventory it as soon as it is received and that will show up when assessed in T-Mobile's system.  I highly recommend insuring it and checking for signature required for delivery.