Thanks for your reply.
Has you can see from my post, my complain refers to the description of the tickets at the time of the purchase and the conditions met at the venue. For instance you refer that REDZONE tickets are always standing positions. Why wasn´t that refer at the ticket description at the time of the purchase? For 325€ each ticket you would expect to have a seat, don´t you agree? People who payed 100€ a ticket had a seat. Why were not met at the venue the ticket conditions mentioned at the time of the purchase as i refer in my post? I talk to a REDZONE coordinator at the venue and she said there was nothing she could do.
REDZONE is associated with U2. The venue was an U2 concert. I don´t accept that U2 claims this has nothing to do with them. This has everything to do with U2.
I thing i am entitled to some compensation. My next step is to present my case to some members of the media: journals, magazines and TV. Perhaps someone finds interesting how U2 treats their funs. Specially a handicap one who was deceived when buying U2 concert tickets.