Support Center

Unfortunately at this time our system is not able to process billing methods with overseas addresses, even for orders delivered within the United States. Ho...

Please get in touch with us about this overcharge by filling out our Contact Us form. Be sure to include your purchase order number so we can locate your or...

We won’t charge you for the discrepancy since the billing error occurred on our end. Please get in touch with us about the discrepancy through our Contact U...

Please get in touch with us through our Contact Us form. Be sure to provide any relevant information you have about the charge, such as the date of transact...

To request a receipt, please reach out to us through our Contact Us form. If possible, please provide your purchase order number, the order date, or the tot...

Our payment processor experienced a bug in July 2020 that caused a "pending" charge to appear on a customer's card, before the purchase was ev...

Sometimes payments show up on people’s bank account statements as “recurring” when they are in fact not. This is what Stripe, our payment processor has to s...

All orders are charged to your card as soon as you confirm your purchase, including books on backorder and preorder. Your preorder will remain active until ...

If your order is being refunded to a credit card that has been cancelled or is no longer in use, our card processor, Stripe will redirect the refund to your...

We can process a PO with the following steps: First, we'll need a representative from your organization to create a user account on our site. If the o...