Office アプリの設定、プロダクト キーの引き換え、ライセンス認証を行うことに関する Microsoft 365 のプロセス。
Hello,
In that case, Microsoft support can Reset activations for you, maybe tomorrow.
Please get in touch with Microsoft Support for further help.
Please go to https://support.microsoft.com/contactus page
Type the ""Chat with someone"" option and press Enter.
Please click on the ""Contact support"" button at the bottom.
Select the Product and Category for support according to your requirement.
The available support methods will be shown to you.
I hope you find this information useful. If you have any more questions, don't hesitate to reach out. Otherwise, please take a moment to accept the answer. Wishing you good luck!