As a business user, you can allow registered users to submit reviews by enabling the product review post type from the General Settings. These submitted reviews would be created as draft reviews and can be discarded or published by the editor/administrator. By changing the title and message attributes, you can ask for different types of reviews as well as show different messages when the reviews are submitted.
[ wppr_submit_review title="Please provide a review for Product X" message="Thank you for your review of Product X. We are reviewing it." guest="true" ]