A Google Business Help thread has one business owner complaining that someone else registered his business listing within Google Places and he has no access to make changes.
What does one do?
Jade Wang from Google responded to the business owner saying:
please fill out this form - as it appears that this page has already been verified by another account. This form will put you in touch with our support team so you can sort it out.
I don't see any photos on this page so am afraid I can't help you there.
The problem is, that form link does not lead to any form.
So I dug around, found an FAQ on this page that says, "your listing includes information from another business?" "Use the Report a problem link to report your issue and choose Some photos, reviews, or details belong to a different place." That leads to this page which gives you various ways to attempt to fix the results.
If possible, the easiest approach is to contact Google that way.
But it might not work from all locations and time zones.
Forum discussion at Google Business Help.