In the Shopping Cart , you can adjust your service usage address, the number of licenses or amount of storage you want to ...

In the Shopping Cart, you can adjust your service usage address,
            the number of licenses or amount of storage you want to buy, and you can select
            a Microsoft Online Services Partner.
            

            Note: The services offered may vary depending on country or region, and the
            service you chose may not be available when you change the service usage address.