Aye. Very frustrating that.
Despite being a SSC member, I bought a couple of tickets to the last few games, at short notice. On each occasion, I was able to buy South Stand upper tickets. Great view, comfy seats - suits me and my kids. Happy to pay a bit extra to go there.
Not an option now, so you have the choice of buying inferior tickets which wont suit the kids - or waiting till nearer the time and the matches selling out (which will obviously be the case Vs Spain and England.)
Poor organising, although we shouldnt be surprised...