Contact / We are here to help

A question about
your next chapter?

Ask about a guide, an existing order or a delivery. A little context helps us find the right information.

Direct contact

Let’s talk.

Loading contact details…

For order questions

Include the guide title, the email used for the order and your receipt reference. Please do not send card numbers, passwords or identity documents.

01 / Choosing a guide

Tell us where you are starting.

Mention the topic you want to study and which Kotlin concepts you already use. You can also compare prerequisites on each guide page.

02 / Delivery or file issues

Help us locate your order.

If the delivery window has passed, include your receipt reference. For an unreadable PDF, describe the issue and the PDF reader you tried.

03 / Refunds and privacy

State what you need.

For a refund, include the purchase date and guide name. For a privacy request, explain which information or action your request concerns.