Ok so me and my mum both bought a new phone today, the same one the Samsung J600.

only problem is we're both setting them up and BOTH of us can't get the back to click back on to the phone properly once we've put the battery in its not that the battery is blocking it or anything, its that the little tags inside the case don't seem to want to click in properly. i can get mine to shut, but its still raised at the top so it's obviously not properly closed. my mum's wont shut at all. i would think it was me being thick, but since it's happening to both of us i just don't get it.

any ideas?