This product includes one Office 2019 Home and Business key for 1 Mac. MS Office 2019 Home and Business is only for Mac, not for Windows. Refund is not possible after the keys have been redeemed. MS Office 2019 Home and Business for Mac is supported on the three most recent versions of macOS (macOS 13 Ventura, macOS 14 Sonoma, macOS 15 Sequoia). Operating hours: 10:00 AM - 5:00 PM WIB We apologize and kindly ask for your understanding if there is a delay in order responses as the admin is human, not a robot. If you are served outside these hours, it means the admin is currently online.