You can leave the seller a review ONLY if you've purchased from the Zibbet marketplace as a signed in member.
If you've purchased as a Guest, unfortunately you aren't able to leave a review for the seller.
How to leave a review
Head to your "Purchases" page, via the "You" dropdown.
Then, click the "Actions" dropdown and select "Leave a review".
A modal window will appear where you can leave your positive, neutral or negative review.
Once submitted, your review will be seen on the sellers storefront and on their product detail pages, along with your name. This helps to build trust and authenticity in the Zibbet marketplace.
A good example of what this page looks like is from AllAboutTheButtons.
Product details page reviews