If you are paying a publisher you are being cheated. People like this are called vanity presses, and they exist only to steal money from the uninformed or the gullible. They will not edit your work, they will merely format it for printing and send to to a cheap overseas printer, charging your 10 to 20 times what you would pay if you did that yourself.
Then they will ship all the books to you. They will not put them in bookstores, or Amazon, or make any attempt to market them. You will end up with a storage unit full of books and no idea how to sell them.