If you still haven't resolved your issues with the U2.Com presale, or if you haven't heard back from anyone after initial conversations on resolving issues with the U2.Com presale, please go to the following link in Zootopia and leave them a note as soon as possible:
http://zootopia.u2.com/forums/topic/37643-out-of-luck-in-the-presale-please-tell-us-here/ (You will need to be logged into U2.com first!)
Not everyone is reporting having luck with this, and you may not receive an immediate response, but the moderators are asking as many people as possible to share their issues in that thread as soon as possible.
If you have left a note before, and gotten no response or assistance to date, please leave another.