Last updated: September 16, 2026

Terms and conditions

The rules for using Don Marketer and buying the PDF guides. Short, with nothing buried.

The short version

  • The calculator and glossary are free and informational.
  • Guides are a one-time purchase: no subscription, no auto-renewal.
  • EU consumers get a 14-day withdrawal right unless they asked for instant delivery.

Who runs this

Don Marketer is operated by Michal Krčmář, VAT number 87329051, based in the Czech Republic. Contact: dm@donmarketer.com.

What the site offers

Free tools (the marketing calculator, glossary, articles) and paid PDF guides. Calculator output is an estimate based on common market ratios: not a guarantee and not individual consulting. The budget decision stays yours.

Buying a guide

  • A one-time purchase of a single file. No subscription and no automatic renewal.
  • Prices shown at the time of order apply; taxes are shown where required.
  • You get the file to download or by email right after payment.
  • The file is for you and your company: don't republish or resell it.

Refunds and withdrawal

EU and Czech consumers may withdraw within 14 days without giving a reason; for digital content delivered immediately that right ends once you have expressly agreed to instant delivery and acknowledged the loss of the withdrawal right: a separate, never pre-ticked checkbox at checkout. If a file doesn't work or isn't what was described, email me and I will fix it or refund you.

Liability

The content is field-tested know-how, not a promise of specific business results. I am not liable for decisions you make based on it.

Your data

How I handle personal information is described in the Privacy policy.

A sensible starting point, not legal advice. Have a lawyer review these terms before selling into the US.