I add 5 and get the discount ...

In the cart I see:
5 $135.00 $675.00
In the checkout_payment I see:
Sub-Total: $675.00
Free Shipping Options (Free Shipping): $0.00
13% HST: $87.75
Total: $762.75
In the checkout_confirmation I see:
Sub-Total: $675.00
Free Shipping Options (Free Shipping): $0.00
13% HST: $87.75
Total: $762.75
What were you wanting to see?