They may have a “U.S. addresses” but Facebook suggests they’re in Pakistan. They've awards logos on their Site from 2020 (the web site didn’t exist until 2024). You will find lousy opinions on copyright about their editing services. We couldn’t locate the highlighted book on their own homepage on Amazon. https://maplepublishers.com/blog/how-to-start-your-career-as-a-fiction-writer-by-self-publishing-a-book/