You have what€™s called a Canonical URL issue in your website, which means that Google€™s bot will see two versions of your homepage. What does that mean to you? This means that Google is dividing the authority amongst the two pages, which are actually a single page. Look, I live in US so you know I€™m not a scammer, well at least my wife doesnt think so, but that€™s another story.
Back to the topic at hand€¦ So in effect, the power of your homepage is being reduced by half iâ€™s authority instead of the full amount! I don€™t expect you to believe me, however, I would LOVE the chance to sit down and discuss it. Just to note, YES I do speak English and on United States soil! (Another inside joke for business owners who get lots of telemarketing calls.)
You can learn more about this issue here : http://www.youtube.com/watch?v=GzA_VBHtuCk
Your web developer can easily correct this issue by making a 301 redirect, however with all do respect to them, if they were that good they would have caught this simple error a long time ago.