Account data: your name and email address when you register.

Purchase data: records of the products you buy (handled together with our payment processor).

Usage data: basic analytics to help us improve the site.

To provide access to purchased materials, operate your account, process payments, respond to enquiries, and improve our service.

Payments are processed by Stripe. We do not store your full card details on our servers. Stripe processes your payment information under its own privacy policy.

We share data only with service providers who help us operate (for example our database host, file storage and payment processor), and where required by law. We do not sell your personal data.

We keep your account and purchase records for as long as your account is active or as needed to meet legal and accounting obligations.

You may request access to, correction of, or deletion of your personal data, subject to legal limits. Contact us to exercise these rights.

For privacy questions, email dpidmaths@gmail.com.