Not only will they take your money and offer you some insulting dribble, their 'tactics' or 'secret methods' could get your site black-listed or banned at that Search Engine. That's the algorithm end of the business and it is very important. When you are writing a Web page, think quality writing, think creative writing, think concise writing. A web page is just another magazine article, product announcement, book excerpt, etc. It is a piece of literature designed to inform, educate, provoke or entertain the reader.
Every article has a title.
The next step is to proof your copy. Or does it veer off into other, albeit related, directions. Your page may ultimately rank in the search results for 'fish' but then you'll get all kinds of undirected traffic. People looking to raise fish feed fish, or save our fresh water fish. This will make the search engine appear to be 'ineffective', and that doesn't help your 'partnership' with them in the least.