What do you mean 'how to put the postcode' ? You enter the post code in the post code field on the billing address on your iTunes account.
Apple’s Worldwide Developers Conference to kick off June 10 at 10 a.m. PDT with Keynote address
The Keynote will be available to stream on apple.com, the Apple Developer app, the Apple TV app, and the Apple YouTube channel. On-demand playback will be available after the conclusion of the stream.
The Keynote will be available to stream on apple.com, the Apple Developer app, the Apple TV app, and the Apple YouTube channel. On-demand playback will be available after the conclusion of the stream.
What do you mean 'how to put the postcode' ? You enter the post code in the post code field on the billing address on your iTunes account.
how to get postcode
Sent from my iPhone
You get it from your address.
how to put the postcode in to iphone 5s