Product Subtotal not updated

Hi there, the plugin is working great for calculating the tiered pricing on the cart level once added to cart, however, the summary table is not reflecting the tiered pricing but the product variant pricing without discount.

From 0-1000 price is $0.80
From 1000-3000 price is 0.77

When changing the qty selector to 1000 for example the subtotal shows
1000x Handwritten Letters . $880.00
Standard Letter Template – Standard Letter
–
Subtotal $880.00

And the table rendered below shows
QUANTITY PRICE
1 – 999 $0.88
1000 – 2999 $0.77
3000 – 4999 $0.73
5000 – 9999 $0.71
10000 – 24999 $0.67
25000+ $0.63

The page I need help with: [log in to see the link]