You are ordering digital products. Any eBook ordered here will not be refunded. Once the purchase is complete, we have no way for customers to return their eBook, as they are already emailed to the customer. Therefore, they are non-refundable.
We do however permit exchanges for those looking to purchase physical copies, if we have inventory of the book you purchased. We can most certainly apply your purchase credit towards the original price of that book, and bill you for the difference along with the shipping cost.