Can I trade in my iphone 8 plus 64gb for a iphone 8 plus 128gb at the apple store?

Can I trade in my iphone 8 plus 64gb for a iphone 8 plus 128gb at the apple store?

Read more: https://iphoneus.org/faq/can-i-trade-in-my-iphone-8-plus-64gb-for-a-iphone-8.html