You all know the deal by now. Amazon.it is selling Black or Silver Galaxy S8 for £548.57 with no need for fee free credit card.
At this moment in time immediate delivery is available, so no waiting a few weeks like the other cheaper deal. This is also "unbranded" for anyone who is worried about the other one being branded (although there have been numerous reports that it isn't).
The phone can be had for even cheaper at £525.65 Using a fee free credit card.