ZERO SERVICE OR ************-Which is which?

I bought a book online on the 12th of April. After that i was issued an order number #47796 and informed via the order details web page that the book would be dispatched in 3 to 7 working days and delivery would be in 2 to 5 working days. I have been trying to contact them telephonically but the phone service is always unavailable. I have sent query emails via the website but haven't gotten a response. I am disappointed because of the lack of assistance. I desperately need this book to successfully pursue my studies and my greatest fear as i type this review is i have lost a great deal of money in what could be a ****. I certainly wouldn't recommend this business (if it is a business and not a ******** platform) with the way i have been treated as a customer. My appeal to you is for you to deliver the book urgently or refund my money (almost R1000), failure of which i will pursue legal channels.