So I have a Sony xperia Ion which works fine but its quite beaten up, not much scratches but the small black cover that covers the battery charging slot has come off and its also missing the sim card closing tray, which fell off somewhere. It's fully functional and all but I doubt I have the bill and headphones as its over 2 years old and we have shifted houses and all... will they accept it as long as its working or will they only accept perfectly condition phones?