They May have a “U.S. addresses” but Facebook states they’re in Pakistan. They have got awards logos on their own Site from 2020 (the website didn’t exist till 2024). You'll find bad opinions on copyright about their modifying services. We couldn’t locate the highlighted book on their own homepage on https://maplepublishers.com/blog/services-authors-receive-from-self-book-publishers-in-london/