In my own direct experience Plus business pages just flat out don't work most of the time. Our business moved back in February and I went to change the address on our Plus account since that's now what appears in search results (it seems to override whatever is in Google Places). I've been locked out of the account ever since with an error 500 and the address in search results is still the old one. Zero help in any form from Google via the product support forum.
rbritton|12 years ago