just got a Second Evo

[brc80]

To make a long story short, i pre-ordered at Radio Shack and thats the phone ive been using. Today the Ups man shows up at my door with a package. it turns our its a Evo shipped from sprint. I didnt order this, so i call them up play a little dum and ask if any orders or changes have been made to my account, last change was me activating my Preorder phone on the 4th.

So what should i do with this new phone?