We've covered this before, don't lie to Google in their Google forums. But it happens all the time!
In a recent Google Webmaster Help thread, one webmaster is asking about using a PR service, as if they never tried it. The webmaster wrote:
I have recently made contact with a company named PRWeb and I was wondering if anyone here has used or could recommend them for getting a higher ranking in google? My Current SEO is useless and I was offered a 1000 keywords package for a very reasonable price and it includes support throughout. The website is www.prweb.com.au I have seen on Truelocal and facebook that there are a lot of happy customers out there, But of course I would love some further opinions before investing my money.
In which John Mueller of Google jumps at:
James, it would be nice if you disclosed your association with this website.
According to this thread: "My website designer encouraged me to purchase this product (...) Its been a few months now and (...)!" you're already a client of PRWeb.
Just to be clear, if you are buying PageRank-passing links from any website, that would be considered a violation of our webmaster guidelines.
Don't try to be smart with Google, it will come back to bite you. More importantly, keep this in mind for reconsideration requests.
Forum discussion at Google Webmaster Help.
Image credit to BigStockPhoto for slinky