Oh. May I suggest two things, to help everyone?
1/  It would help enormously to say that you had made the correction in your initial comment. In this case, I spent a while hunting for a mistake which no longer exists. ("joined" platforms at different layers here seems strange, and had OSM seen it in my update - surely it would? - I am certain I would have corrected it.)
2/  Please state exactly what you do in your comment - e.g. (I make it up) "Disconnected northern end of platforms 7 and 13; they are on different levels". That way, the other mapper can check the work, and learn from it - and perhaps you will have made a mistake too!