Having trouble upgrading "The Complete U2" to iTunes Plus

Question

I purchased "The Complete U2" in early 2005. When iTunes went DRM-Free/256kbps "The Complete U2" was not immediately available. Apparently, on 05/23/09, for many who had purchased "The Complete U2" like I did, the collection became available for upgrade to iTunes Plus. I received notification in my iTunes Plus cue on or around 05/27/09. When I tried to upgrade on 05/29/09, I received a message stating that the item is no longer available in the iTunes store. Mind you, the icon for "The Complete U2" and the "Buy Album" (for $45.00) is still in my iTunes "Upgrade to iTunes Plus" storefront.
I've been in email support contact with two different reps from Apple, and unfortunately despite communicating with a "Tier 2 iTunes" support rep, I've gotten no solid answers as to why this is the case, or whether it will at some point be available for upgrade/download. The most I've been told is that it's "the band's (U2's) decision" to sell or not sell their product and that they can choose to change sellability at any time. My own further understanding is that Universal (U2's prior record label at the time "The Complete U2" was released) pulled the plug on the initial retail sale of the product in about 07', so new users cannot purchase "The Complete U2" for the first time, any longer. What is puzzling, is that Universal would go to the lengths of providing a 256kbps DRM-free, iTunes Plus edition of "The Complete U2" only to yank it a couple of days after it became upgradable to a lucky few.
I have read online that several users who received notification on 05/23/09 of the availability of the Upgrade to iTunes Plus for "The Complete U2" were in fact successful at upgrading and downloading the content, both here in the U.S., and at users in U.K. and another European country (The Netherlands) have also mentioned being able to upgrade.
I've not read of anyone else in my predicament: Namely, my iTunes Plus upgradable content list contains the option to upgrade "The Complete U2", but when I tried to upgrade I'm receiving a message indicating that it is "no longer available for purchase."

Answer 1

I don't know if this will help anyone. In fact, just by posting this it may affect others. Anyway, here goes.
I also could not upgrade my complete u2 library. I tried each day for the past couple of days. Last night (6/19/09) I tried again with the same results. Then I noticed that in the upgrade screen, next to the buy all button, it listed all my purchase that I could upgrade. The total cost included the $45 for the complete U2. I figured, what's the worst that could happen if I try it?
Well, to make a short story long, IT WORKED! I was able to download the U2 complete upgrade. I just had to also upgrade 8 songs from other artists.
So, if you have other songs that can be upgraded, and your Buy All option includes the $45 U2 cost. Then give it a shot. Get it while you can until they "fix the glitch"