o my old e-reader app does not work any more. In the reading room are 8 old books autorised with my old (unkwown ADobe ID account number and pass word.

How can I synchronise my old unknown ADOBE ID account number with the new one? (sailingjohanna@kpnplanet.nl)

Is there another way to place the old books tothe new  reading room of the new app. Bol.com.ebooks?