You are welcome to my one seated, near standing by stage, Kellie, its still in the offered section for exact location (There is 6 of us going together tues instead)
At MEN arena, I took Ticky's spare standing, and exchanged it for a seat at the office there on the night...don't know if you could take my ticket and try the reverse? As its a good seat there might be someone at O2 like I was at MEN that needs to sit instead.
email me your address if you want me to send it over in time, in fact you can have it anyways to do with what you like on the night...you never know mirrin might be there in the queue!