Your code... does it start with U2JTA?
No, it's the U2JTB.
That explains it... your code belongs to the Wires group...
The calendar, as it appears on http://www.u2.com/tour:
Wednesday, 18 Jan., 9am - Presales open for 'Red Hill Group' (longtime subscribers)
Thursday, 19 Jan., 9am - Presales open for 'Wires Group' (new subscribers)
Friday, 20 Jan., 5pm - Presales end
Monday, 23 Jan., 10am - Public on sale (all 2nd shows)