Terms & Conditions

Last updated 21 October 2026

These terms cover your use of scienceofselling.co and anything you buy from Science of Selling, a brand of Online Income System LLC, 8206 Louisiana Blvd NE, Albuquerque NM 87113, USA ("we", "us"). By using the site or buying from us, you agree to them. Questions go to [email protected].

Purchases

Our books, workbooks, audiobooks and courses are digital. After you pay, you get access by email or download. If something does not arrive or does not work, email us and we will put it right. Prices are shown in US dollars at checkout. Card payments are handled by Stripe.

Using what you buy

What you buy is for your own use. Please do not copy, resell or share it publicly. All content on this site belongs to Online Income System LLC unless stated otherwise.

Calls and consulting

Any free call or paid programme is covered by what we agree with you at the time. Nothing on this site promises a particular result: what you get from it depends on your own business and the work you put in.

SMS Terms

Program: Science of Selling customer texts. When you give your mobile number at checkout, you agree that Science of Selling can text you about your purchase, for example to check your book arrived and to help if you have a problem accessing it.

Message frequency varies, usually one or two texts after a purchase.
Message and data rates may apply.
Reply STOP at any time to stop texts. You will get one message confirming you have been unsubscribed, and no more after that.
Reply HELP for help, or email [email protected].
Mobile carriers are not liable for delayed or undelivered messages.
We do not sell or share your mobile number or SMS opt-in data with third parties for marketing purposes. See our Privacy Policy.

Limits

We work hard to keep the site and our products accurate and available, but we cannot promise they will always be error-free or uninterrupted. To the extent the law allows, our liability to you is limited to the amount you paid us for the product concerned.

Changes

If these terms change, we will update this page and the date at the top.