Shipping Option Imports but doesnt change on selecton on checkout?

Good Day
Can you please help me. I manage to get everything imported and setup but I have tow issues. It imports the shipping option per product. You can select them on check out but it doesn’t update the final checkout price.

Also it imports the product variants but doesn’t display them correctly.
https://ambush.co.za/product/hiking-t-shirt-short-sleeves-camouflage-military-shirts-mens-outdoor-tactical-shirt-quick-drying-hunting-workout-clothing-army/