One more observation:
When I clicked manage my pledge button first, I saw only several pledge levels. I selected the one indicated by your system, as I guess it is corrected.
On my second attempt to check & add some addons I saw much wider pledge list - starting with much lower $$$ pledge levels.
I didn't finish that as there was not my pledge level anymore (Digital Fun Pack).
Is this a bug?
I really don't remember what was my pledge amount and selection, I just hope your system was right with my first attempt.
I just know that I didn't include beta access a year back and I wished to add it (together with dig.strategy guide) which I successfully added and paid by paypal, no problems here.