Abrechnungsdatum ändern

i don't know the answer to that, adobe support can give you that answer and, if it is possible, make the change for you.

using a browser that allows popups and cookies, contact adobe support during pst business hours by clicking here, https://helpx.adobe.com/contact.html?rghtup=autoOpen
in the chat field (lower right), type AGENT
be patient, it can take quite a while to reach a human