Invoice Follow-Up OS is a collection of practical digital tools created by DOMISLEK, a registered sole proprietorship in Slovenia. We build straightforward spreadsheets, templates, and educational resources that help freelancers and small businesses organize repetitive work and make better next-step decisions.

Products are delivered digitally through Payhip immediately after checkout. For questions or delivery problems, use the Contact link in the store navigation.

Refund policy: Please review each product description before purchasing. If a file is defective, duplicated, inaccessible, or materially different from its description, contact us within 14 days. We will provide access assistance, a replacement, or a refund where appropriate and where required by applicable law. This policy does not limit statutory consumer rights.