Question if I want to upgrade from iPhone 6 to 6+ after launch

[hasanahmad]

If i get the 6 on launch day, How long do I have before I decide, I want the 6+ instead and what is the process in an Apple store?

 

[maflynn]

14 days, but given the constrained iPhone 6+ supplies, you may not have that option in the window of time for you.

 

[hasanahmad]

14 days, but given the constrained iPhone 6+ supplies, you may not have that option in the window of time for you.

so is it confirmed 14 days at an Apple store?

 

[G-Ziss]

14 days, but given the constrained iPhone 6+ supplies, you may not have that option in the window of time for you.

Is that even if you opened/used it?