So I originally bought a wifi only iPad 2. Found out i needed 3G, so I returned it, they didn't have a white one so I just exchanged it for a black model with 3G. Couple of days later they get some white models so I exchange for a white iPad. After exchanging for the white iPad, the employee told me I couldn't echange anymore because I have reached the limit. So is there a way to return this iPad? Much rather have a iPhone 4. Can I bring it to a different apple store?