Layout - Ibrox Stadium, Glasgow

Has anyone heard if there has been a change in the layout for the Ibrox Concert in Glasgow? One of my friend who booked her tickets online, was told what stand she was in and what her seat numbers were. She has now received a letter to say that due to "a change in production" she cant have her original seats and new seats will be allocated in due course.
The only thing is that they have told her they cant guarantee that her new seats will be together.

Has anyone else heard anything about this?