You may receive an email from a Janice Jacobsen with the following or similar content

I’ve helped hundreds of companies increase their traffic and I’d love to show you what my service can do for you. I don’t promise the world, I’m straight forward and to the point … I deliver rankings. My rates are completely affordable and I don’t want to oversell you either, I start small and have my clients begging for more. I won’t take on your site unless I know I can deliver rankings. Reply to this e-mail if you have the slightest interest … you’ll never see rankings the same way again.

This person is known to offer little for a lot and in some cases their work has resulted in websites being blacklisted from Google.  Do not use anyone sending an email like this.