Shimano Ultegra 6800 11 speed cassette

Just imported one from Wiggle:

No import tax when it arrived.

So that seems to work well

I just checked normally I should have paid 1 %.

(1% is more than you would expect, because first 1 % of the total costs including shipping and than on top of it 7 % VAT and maybe some small fee. So 1 % duty will end in a bill that is something like 12-15 % of the product price. Unless they use a wrong number than it can be more expensive).