Many writers who are now well-known earned nothing but rejections slips for years. When a poem or manuscript comes back from one publisher, submit a fresh copy to the next one on your list. Always enclose a self-addressed, stamped envelope for a reply, and a separate, larger one if you would like your work to be returned. Unless guidelines specify otherwise, send only three to five poems. Don't call unless it is to say that your work has been accepted by another publisher.
Publishers are responsible for marketing and distributing the work.
Books from these printers are often cheaply and unattractively produced and do not command respect from readers, libraries, or the media. Since the publishing company is paid up front, it has no incentive to promote or distribute the book, or even to screen the books that it accepts for publication. Many such presses exist solely for the purpose of making money from writers whose work may otherwise be unpublishable. The Academy would strongly advise any writer not to agree to a subsidy plan to publish his or her book. However, you cannot win a copyright infringement case unless your work is registered.