Click the Settings tab. Under Your Google Merchant Center account, click Request re-review. On the Google Merchant Help page that loads, complete the form and write that you are requesting a re-review of your store. Click Submit.

Sign in to your Merchant Center account. , then select Delivery and returns. In the 'Delivery' tab, click Add delivery service or select an existing service. Configure your shipping costs using the options available in the table.

Merchant Center accounts are reviewed regularly. If it is found that your products are not in compliance with Google's Shopping policies and requirements, you'll receive a warning email with more details about the issue, how to fix it and a time frame in which to do so.