Yet another Google Local bug to report.
Jade Wang from Google said in a Google Places Help thread there are confirmed reports on the categories not showing up on Google+ Local pages.
Jade explained, "It seems that categories are not appearing on some local Google+ pages. (Or, relatedly, some categories are showing, and some are not.)"
She said Google's engineers are working on fixing it but she does not have an estimated time for a fix.
She said there may be a work around to get them to work. She said:
Poke/Null Edit:
- Go into your dashboard to edit your page.
- Submit the edit without changing anything.
MapMaker:
- Find your location on mapmaker.google.com
- Edit -> Select a Place, then click where your business is located
- Edit -> Edit this place
- add your desired category if it's not already there, Submit
Please note -- MapMaker edits need to go through review (just like all other edits) before going live.
Forum discussion at Google Places Help.

Comments:
virginia
09/28/2012 02:39 pm
Really? Does this mean if we don't make an edit but just re-confirm we may have to wait 3 weeks + for the dumb postcard to arrive? This is how it works mostly in Australia
Linda Buquet
09/28/2012 03:07 pm
Hi Virginia, pokes and even data edits should not require a postcard. You only need to re-verify if you change name, address or phone.
virginia
09/28/2012 03:23 pm
ok thanks Linda, was aware but the MapMaker has me worried! I'll give it a go now and let you know x
Linda Buquet
09/28/2012 05:13 pm
MapMaker is so tricky! Good luck and let us know.
virginia
09/28/2012 05:54 pm
how does it differ from Google Local? I cant seem to see, unless it is because I am logged into Google?