Where do I drop my old iPhone that I trade in
Where do I ship my old iPhone
Question marked as
Wondering if you have set-up a trade-in and purchase, or just gathering info. first.
If you are waiting for trade-in info. from Apple: Shopping Help - Apple has a "track your order" link at top right
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Else: Apple's Trade-In webpage: Apple Trade In - Apple has a Q & A section at the bottom:
Eg: says
Q: How do I send back my device ?:
A: We’ll either send you a prepaid trade-in kit or email you drop-off instructions.
If we send you a trade-in kit, it will include instructions on how to prepare and package your device.