Remove the second [site_reviews] shortcode from your page.
Make sure to also read the Shortcodes documentation on the Site Reviews > Help & Support page. Remember, you can add multiple options to the same shortcode!
If I remove the shortcode, the reviews won’t display! as the first section is to submit a new review, 2nd bit is to display them! please suggest an alternative solution/investigate further
You have added these three shortcodes to your page:
[site_reviews_form assigned_posts="408" hide="email"]
[site_reviews]
[site_reviews display="2000"]
As instructed previously, remove the duplicate [site_reviews] shortcode from your page.
Additionally, Site Reviews will not load more than 100 reviews at a time, even if you enter display="2000". Instead, do this:
[site_reviews display="24" pagination="loadmore"]
