Privacy
Last updated 24 October 2026
This site sells one book and its workbook. It is run by DARKBARBARIAN - FZCO, Dubai, United Arab Emirates. Write to help@jonasbyler.com about anything on this page.
While you read
This site keeps nothing about you. There are no accounts, no sign-up forms, no advertising and no tracking cookies. Our host, Cloudflare, keeps short server logs (the address your device connects from, your browser, and the page it asked for) to keep the site safe and running.
When you buy
We sell the book ourselves. The payment is handled by Stripe: it takes your card details and your billing address, keeps them under its own privacy policy, and never passes your card number to us.
We receive your name, your email address, your country, what you bought and any tax charged. We use them to send your download link, to answer you and to give refunds. A delivery email service sends that email for us. We keep the record of each sale for as long as tax law requires, up to 10 years, including the details the tax rules ask us to keep to show which country a buyer is in.
When you write to us
We keep your email and our answer for as long as we need them to help you.
What we never do
We do not sell or rent your information, and we do not send newsletters or offers you did not ask for.
Your choices
You can ask what we hold about you, ask us to correct it, or ask us to delete it. Write to help@jonasbyler.com, and we answer within 30 days.
Changes
If this page changes, the date at the top changes with it.