If Turkey beat Portugal AND GB, then both teams would have two wins and one loss, and it would go to the head-to-head, and Turkey would go through.
So GB not through just yet
So if Robson/Rae win the doubles rubber does that mean were through to the next round
Not quite, we would lose to Turkey if they beat Portugal and us, and Portugal beat Latvia. And we would be in a 3 way tie for 1st if Turkey win both games and Latvia beat Portugal (which would be decided by sets won, so we currently have the advantage of having won every set so far).