Buy Office Home & Business 2016 for Mac – Microsoft Store United Kingdom Online Store https://www.microsoftstore.com/store/msuk/en_GB/pdp/Office-Home-Business-2016-for-Mac/productID.324180900?ICID=All_Office_ModF_HB16Mac
Switch to a different Office 365 for home subscription – Office Support https://support.office.com/en-us/article/Switch-to-a-different-Office-365-for-home-subscription-3fcc1efc-2722-427f-8efa-db94b9b0a36b