Refund policy

Guarantee

30-day guarantee: if a file doesn't open, if the content isn't what the product page describes, if you were charged twice or the email never arrived, write to us and we'll refund you in full. Ask for the refund within 30 days of purchase, writing to hello@diagrambooks.com with the email you used to buy. The guarantee is in addition to, not instead of, your legal rights.

New Zealand: consumer guarantees

If you buy as a consumer, the guarantees of the Consumer Guarantees Act 1993 apply (for example, that the product is of acceptable quality and matches its description) and cannot be excluded; if a product fails them, you can ask us to fix the problem or, where the Act allows it, to refund you. These rights apply in addition to the guarantee above. The Fair Trading Act 1986 also protects you against misleading information; the Commerce Commission (www.comcom.govt.nz) provides information about these rights.

How refunds are made

Refunds are approved by the store and made to the payment method used for the purchase, through the payment provider. How long it takes to show depends on your bank or card.

Contact

Questions: hello@diagrambooks.com.

Last updated: 2026-10-23