Can I trade in an iPhone 6 plus for one with a higher capcity?

I recently bought an white iPhone 6 plus 16 gb and i'm completely out of storage on it. Is it possible to trade it in for a higher capcity one and maybe even a black one?

Yes but note that since you already used your phone (so it's now used), you won't get full value back. Also note that you'll be paying the RETAIL price for the larger capacity version (so $699 for the 32GB).

Yes. But you will have to pay for the new phone.

Trade? Uh. No. Beware because to upgrade you'll have to pay full price for the next one. Sell it and take some coins out of your cookie jar and go buy another one? Yeah. After 14 days of ownership on a contract, it's your problem and no longer their's. Have to pay to play. Best luck.

Well you would need to ask the place that you are planning to do this trade. But then common sense would tell you that.

BUT IF, you just bought the phone, and it is WITHIN the time period that you can return it from where you bought it, (7 to 14 days in most cases), you could exchange it for a different model. BUT you would take a hit on a restocking fee, even if all you wanted to do was give the phone back and walk away, plus pay for any data you used in the time you had the phone.