As an online business, you need to meet specific requirements so that we can set up a Google Shopping campaign for you. If you don't comply with the following points, your ads will be most likely suspended.
Your online store has to include a page where returns and refunds are clearly explained. Even if you don't offer returns or refunds, still state your policy explicitly. The page has to contain all requirements and timeframes regarding possible returns or refunds. If those weren’t accepted, you’d also need to specify this in your e-commerce.
To have Shopping ads running, you’ll have to add at least 2 out of these 3 contact details on your website such as a phone number, email address or physical business address. Having a contact form is not enough for this purpose.
Additionally, please be aware that certain items cannot be advertised in Shopping campaigns. Some of those are dangerous products (such as drugs or weapons), products with a trademark not belonging to the trademark owner, vehicles, services, and ticket sales.
There are certain practices that lead to a Merchant Center account suspension. Most common practices are abusing the ad network, obtaining sensitive data without secure SSL server connections, or misleading promotions.
You can read more about Shopping ads policies here.