iphone 4s 16g to 32g

[Aztec Fight]

hello new to posting on the forum but been a long time lurker and i have a question for the community

i bought a 16g iPhone 4s on launch day at the local apple store. The more and more i add to the phone i realized i should of got a 32 or 64G version. Is it to late to trade the 16g in for a 32G/64G and will the cost of the 16g go toward the 32/64g?

thanks in advance

 

[FreakinEurekan]

Apple has a 14-day return policy. Not sure you can directly "Exchange", you might need to wait a few days for your carrier to reset your upgrade eligibility. Your Apple store can answer any questions about that.