IPhone trade in? Is it possible?

So I was wondering if it's possible to trade my silver iPhone 5s for a gold 5s and instead of 16gbs, 32gb? Is this even possible? My phone has kinda been acting weird lately. I just got it a couple months ago.

It would really depend on your contract and carriers most don't usually let you change the color out but if its acting weird you can exchange it for a new one and maybe the store will help work with you if you are willing to pay the upgrade fee

You can do a cash trade-in. Just do it to eCycle Best. They'll give you a good amount of cash for your iPhone and you can add some more money to buy your gold iPhone 5S.