Contact

Last updated: 1 November 2026

Hidden Hungary is run by Polybook Press.

Owner: Valentin Sarić (private individual, publishing as Polybook Press)
Kriska 107, 10000 Zagreb, Croatia
Email: valllentinsaric1@gmail.com

Payments, VAT and invoices are handled by Polar Software, Inc. (polar.sh) as merchant of record. For questions about an order, write to us with the email you used at checkout; we usually reply within two working days.