duplicate Adobe IDs

how can i consolidate two adobe id's?  the 2nd was created in error while trying to access adobe digital editions on my new laptop.  prior to the new laptop i was always able to use my old laptop and my pc interchangably and had no issues borrowing e-books (for my nook) from live-brary?  i was trying to correct situation but the live chat person i spoke with said to pose question here as its a technical problem