Our respected customer.
Thank you very much for your patronage.

After you purchase, our system will automatically send a download link to your mailbox in about 2 minutes.
If you have any questions, please contact us in time.
All questions will be answered within 8 hours.

Our customer service mailbox is: ebooklibonline@outlook.com

We truly want you to be happy with your purchase. If anything isn’t quite right, please don’t hesitate to contact us before opening a PayPal case. We’re here for you and will do our best to sort things out within 3 to 12 hours.