Last updated: 14 September 2026
Website operator
Holon Puzzle
Tomasz Karczewski
Block C-15, Südstraße 31
47475 Kamp-Lintfort
Germany
Website: K.O.T.
Website address: kot.ist
Contact
Email: kontakt@holonpuzzle.com
Phone: +49 176 79911047
Identification numbers
VAT identification number (USt-IdNr.): DE463088071
Business identification number (W-IdNr.): DE463088071-00001