SEO is an industry plagued by dodgy operators. Many SEO agencies promise the word, but they can't deliver the results. 12 month contracts are a common practice in the industry - agencies will claim this is because of their own high up front investment costs, but in reality they exist only to keep clients trapped after results fail to materialise.
Work with an honest SEO agency and see the difference in results. We have no term contracts so we only keep clients if we get them a result. We have skin in the game with you to make sure you're achieving your campaign goals, because if you don't grow, we don't grow.