HOW TO REPLACE / CHANGE LICENSE OFFICE PHONE ACTIVATION

1. Open Office Application ( Word / Excel / etc. )

2. Click Account Menu

3. Click Change License Button

4. Enter Product Key Instead

5. Click Activate Product Icon

6. Choose “I Want Activate the Software By Telephone” if your Product Key is Phone Activation Key

Then you can see this link for activation by phone :

How-to-activate-office-visio-project-by-phone-activation