Question 1

How will I receive my e-book after purchase?

Accepted Answer

After successful payment, private PDF download links are sent to your email address, usually within a few minutes. The links remain active for 7 days.

Question 2

What format are the e-books in?

Accepted Answer

Published editions are delivered as PDF files that can be read on a phone, tablet, or computer.

Question 3

What payment methods are accepted?

Accepted Answer

We accept supported card payments through Polar. Card processing is secured by Stripe.

Question 4

Can I get a refund on an e-book?

Accepted Answer

Digital-product refund rights can depend on your location and the delivery status. Contact support with your order number so we can review your case fairly.

Question 5

What are book bundles?

Accepted Answer

Book bundles combine complementary e-books into a suggested reading order and may cost less than purchasing each book separately.

Question 6

How do bundle savings work?

Accepted Answer

Curated bundles have their own reduced price. They do not receive an additional automatic quantity discount.

Question 7

Do you sell only e-books?

Accepted Answer

Yes. Kozmikus currently sells digital e-books and does not ship physical books.

Question 8

What if my download-link email has not arrived?

Accepted Answer

Wait a few minutes and check your spam or promotions folder. If the private download-link email is still missing, contact support with the email address used for the order.

Frequently asked questions