You can contact Microsoft support to have them change the Sold-to address for you.
You can create a new billing account and transfer your subscriptions to the new account.
You can purchase a new Microsoft 365 subscription with the correct Sold-to address.
If you need to change the Sold-to address for your Microsoft 365 subscription, I recommend that you contact Microsoft support for assistance. They will be able to help you determine the best course of action for your organization.
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