So i originally started with the iPhone 6 that I picked up the Monday after release date, up until Thursday I had the device and then traded someone for the Plus. I am eventually wanting to put AppleCare on the device. Me and the guy I traded with exchanged receipts, but where I gave him a receipt, he gave me his online pickup confirmation. Will this be a problem when I am wanting to put AppleCare on it? I have the device registered to me under my Apple Support Profile.