As of June 2021, the after-sales service phone number shown on the official website of Granz Microwave Oven is: 4008300222, 4008300333, 4008300888

The way to check the after-sales service phone number of the Granz Microwave Oven:

1, open any browser.

2, in the browser to search for Granz.

3, and then in the search results, select the official website of Granz, click to enter.

4. After entering the official website, pull the page to the bottom of the page.

5, and then click on the booking service.

7, and then you can show all the service after-sales phone number of the Grantham.