A message will appear in Office 2010, Office 2013, and Office 2016 indicating that telephone activation for these products is no longer supported.
This message is incorrect, as officially confirmed by Microsoft. This is annoying, but Microsoft is working on a solution.
Telephone activation still works. You can reach the Microsoft Activation System by dialling (0) (800) 018 8354.
If you have any questions, our customer service is available by phone at 0800 056 3102 or by e-mail at firstname.lastname@example.org.