Anna - I also had seats in the Kop on Sunday night (although I didn't actually use them). These seats were sold months and months ago for ?75 each and they were sold as premium seats but were unallocated at the time of the sale. When the tickets were actually distributed and buyers saw that the so called "premium" seats could not have been any further from the stage, my guess many complaints were received. I had an email from the organisers offering me a refund (did you get that email?). It's pretty rare to be offered a refund for a gig so I smelled a rat straight away and took the refund. By that stage pitch tickets were back on sale anyway (like you said, the capacity had increased). I'm always extremely wary about buying unallocated seats because once they have your cash they can stick you anywyere. Bad news huh!