Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
An Office licence is region specific, it must be activated and used in the region it is purchased in, this forum is just a user to user forum, no-one here has any account access, you will need to contact Microsoft Support directly to ask them if it is possible to resolve this region problem on the Office licence, try using this method to contact their support.
Go to this link: https://support.microsoft.com/contactus
Select Microsoft 365
Click 'Get Home Support'.
In the box provided, type billing.
Press Enter, then on the next page, scroll down and click 'Sign in to Contact Support'.
Navigate to Microsoft 365 and Office - Manage my Subscription.
Select the 'Chat with support agent in web browser' option