Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
in the last hour I bought and supossedly installed Home Office 2024 online. I never got the product I paid for but did have a 2021 version which I uninstalled from my computer.
If your account has Office 2021 as well, or if you have an older Microsoft account with Office 2021, it might be a version conflict.
Start an Office app such as Word and look at the right hand side of the File > Account screen. Which product name(s) do you see?
In addition, have a look at https://support.microsoft.com/en-us/office/lifecycle/officeinstall/download-install-or-reinstall-microsoft-365-or-office-2024-on-a-pc-or-mac .
For more on activation, go to https://support.microsoft.com/en-us/windows/activation/activate-microsoft-perpetual-products-using-the-product-activation-portal .