I've had luck with getting reviews out of the filter and removed when they are fake.
We monitor review sites of our clients. A lot of times a fake reviewer will post a couple of places OR they get syndicated across platforms. Terms of service usually does not allow the same review in multiple places so I always take a screenshot of both and write that it is a TOS violation. That is usually the best way to get them filtered or removed from G.
I'd read the TOS and look for a violation. Each platform varies and all can give you a headache.
Taking a screenshot is easy... I have a competitor that actually mentions that they will pay for a review which is a big big tos violation. Exactly who or where at google are you sending an email with violations to?
Not sure if this helps but Mike wrote a post about some new options last week.
<a href="http://blumenthals.com/blog/2014/08/17/google-updates-review-policy-help-files-and-review-flagging-form/">Google Updates Review Policy Help Files and Review Flagging Form | Understanding Google Places & Local Search</a>
New advertising option:
A review of your product or service posted by a Sterling Sky employee. This will also be shared on the Sterling Sky & LSF Twitter accounts, our Facebook group, LinkedIn, and both newsletters.