Unless your living in a galaxy far far away most businesses have heard of Twitter
whether they are using it and using it properly is another story. Twitter is an exchange of information. A fun way to talk to people interested in your products and your story. But you can’t expect results if your community is not part of the Twitter community. One tweet a day is not going to get any movement on an account. You have to put the work in. And that is time. Over time you can build a loyal community that enjoys your exchanges (and you in turn enjoy theirs) and is interested in what you have to say and your product.