weinerdog
War Child
If I had a private jet and could leave immediately after GN'R then maybe
I could risk changing flights, but if anything happens with the flight then I could completely miss the U2 show
Ugh, damn paperless tickets.
I would try contacting Ticketmaster and ask them if they can cancel it as a courtesy. They have done this for me before - it probably helped my cause that I have spent a ton of money on their site over the years. Just be honest and say you got your dates mixed up. Worst they can do is say no.