At the time of writing, the cheapest item in the list is a $0.25 lime. When I add that to my basket and go to checkout, the only available delivery option 'Fas

At the time of writing, the cheapest item in the list is a $0.25 lime. When I add that to my basket and go to checkout, the only available delivery option 'Fast - Tomorrow' costs $2.99. There is a non-food item in the list, which costs $0.51+tax, i.e. $0.54 including free shipping.