I am using HikaShop version 2.2, on Jooomla 1.5.26.
Attached screenshots:
(1) Plugin module, set up for shipping method Ground Shipping, with flat fee charge of $10 plus $2 per product.
(2) Checkout screen, with two different items, first with 9 units and second with 3 units. Shipping charge should be $34 ($10 flat fee + $24 for 12 units), but it is only calculating $16 ($10 flat fee + $6 for the last item's 3 units).
(3) Checkout screen, with two different items, first with 3 units and second with 6 units. Shipping charge should be $28 ($10 flat fee + $18 for 9 units), but it is only calculating $22 ($10 flat fee + $12 for the last item's 6 units).
I believe that this shipping plugin worked fine in the earlier versions of HikaShop (before 2.0).
Yes, my client is a vigneron.