How new is your site? The domain might just need to mature a little bit. Other than that I would add some organization schema to your site to help confirm that

How new is your site? The domain might just need to mature a little bit. Other than that I would add some organization schema to your site to help confirm that your site is the canonical 'home' for you business, possibly a Google MyBusiness profile as well. https://schema.org/Organization https://schema.org/Organization