We will reply back to you within 24 hours after we receive your email. Please try to send emails with proper subjects and informative contents to our corresponding email account to help us work more effectively.

General information inquiry, our guarantee and Tech Support.

Partners, customer feedbacks, contracted authors and other administration issues.

Technical support is for registered customers only.
Please be sure to put the following information with regards to your purchase records, please put the following info at the beginning of your email:
a) Transaction ID
b) email used to order in the corresponding transaction.

Please refer to our Guarantee page for more information concerning this issue.