This has been my experience in two of their stores in London. One of them even decided not to cover a defective product for free 1.5y after I've bought it in an EU country which gave me 2y warranty. I had to fly to that country to have it immediately replaced, for free. This one was really awkward since they have it on the system, they know when and where I bought it and under which terms and still decided not to help me. In my experience it's by far the worst customer support I ever had.