Also notification contains wrong information: if free shipping by cart sum is accepted the notification calculate some $ to add to cart fir free shipping
For example, my shipping method contains following rules: delivery cost is always 350? per order and orders ≥ 1500? are shipped for free. This rule set by your plugin works well. Checkbox ?‘Left to free shipping’ notification? is unchecked but in checkout page (only there, not in cart) appears message ?You only need 750 ? more to get free shipping! CONTINUE SHOPPING?. It happens on every order amount (higher or lower than 1500? no difference). And it is always 750? in message.
You can replicate it on https://cha-shop.ru or I can make screencast.
