Google has removed the customize your URL feature within Google Plus. You are able to request your URL update by using Google’s Live Chat, Phone or Email support system. To do this, follow these steps:

  1. Login in to your Google Plus Business Account.
  2. Click on top left main navigation bar and scroll down to support
  3. A window will open on bottom right of screen
  4. Scroll down in the window, and you will see multiple options to contact support, including, Live Chat, Call or Email. Live Chat is only available Monday – Friday. I have tried the call support, and they usually call within a few seconds.