We do not offer refunds on renewals.
All customers are informed that the license is an annual renewal on, both, the product and checkout pages. The renewal refund policy is also clearly outlined in our terms and conditions page, which is agreed to at the moment of purchase. You had a full 12 months in which to cancel.
If you would like to cancel your subscription at this time you can do so by visiting My Account > Subscriptions and then clicking the "Cancel" link.
Annual renewals have become very common in WordPress product companies. We are constantly improving our products with bug and compatibility fixes, enhancements, and feature additions, as well as providing top-notch customer support. Renewals are important for us to stay in business and continuing supporting the product long term.