Shipping Discount (Coupon) is not working

-- url of the page with the problem -- : www.macnaughton-macmillan.org
-- HikaShop version -- : 3.5.1
-- Joomla version -- : 3.8.11
-- PHP version -- : 7.0.0
-- Browser(s) name and version -- : Chrome 67.0.3396.99 (64-bit)
-- Error-message(debug-mod must be tuned on) -- : N/A
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Greetings,

I have set up a one day discount for shipping on 1 item. (See capture Shipping Coupon.png)
But when I run a test, the discount is not applied to shipping but rather to the product. (See capture Check Out.png)
What am I doing wrong?
I realize the bottom line price is the same but for accounting purposes I would like to have the result appropriately shown.

Many Thanks,
Mac Miller

Hello,

I'm sorry but I don't understand your issue.
You have a coupon and its discount is the shipping price.

If you want a shipping with "0.00" price ; you will have to create a special shipping method.
But a coupon is a coupon ; a line in the cart which have a negative value.
And that coupon is applied on the shipping, with the value of the shipping..
So for what we can see ; it's working fine !

Regards,