vkmast schrieb am 09.10.2020 um 15:22 Uhr

"Mit einer Vorversion oder einem anderen berechtigten Produkt können Sie günstig upgraden."

Your serial number should qualify IF it has not been previously used for upgrading. (The "one upgrade per serial number" policy.)

"Steam customers do not have a serial number for the MAGIX account. So, they need to check if an upgrade is available in the Steam Store or contact MAGIX Customer Service (infoservice@magix.net) to receive a personal upgrade offer."