I received the notification on Google+ Page pre-approved custom URL and would like to request for a different URL. On the Google+ Help Page, it stated there that we can request a different URL but there was not such option as described for our page. Looking around the internet, i could not find anyone with similar situation and tried accessing the page as manager. From my research, other people do have the option to request different suitable URL for their page. Please advice and thank you for checking out this question.
There has been a lot of discussion about this in the Google+ Help Community
There is no option for requesting a different custom url at this time. If you are unhappy with this process, please send Feedback (in the left-hand drop down menu). The team looks at each and every piece of feedback sent in, and the more feedback they get on a particular topic, the more this becomes a priority.