We have exactly the same screw over here using couriers when ordering from the states.
now we can actually pre pay the taxes with the border agents, you set up an account with them, this fcks over the couriers big time. They will still try and charge you but the big fck you is what you can legally tell them to do. It’s a massive scam, nothing short of.
or you find a retailer who DOES NOT use a courier and uses a normal postal service. If your unlucky you will get taxed.
I point blank refuse to use couriers, been nailed too many times now
best of luck