Map details can be changed quickly, however you will need to justify why these details are currently wrong. For example, maybe you are the author and you have changed something. Maybe the wrong details were posted when the map was listed. These are more than valid reasons for a change.
If an authors email address has also changed, feel free to enter it as well. The current authors email is not displayed for privacy reasons.
You may also be contacted to cross-check the change(s).