I signed up for the free trial of Amazon Prime on amazon.it (Italy). For a price of 10€/year I would get free 2-3 days deliveries on eligible items, and I've successfully used it once.
Now there is an item I need that I can't find on amazon.it but I can find it on both .co.uk (UK) and .de (Germany). I signed in there, but they are still offering me a free trial of Prime.
Is the login the same for all Amazons, but Prime specific to a single region?
(I've also noticed .co.uk offers Prime at 80£/year, which is 10x the price it has on .it. did they misspell something somewhere?)