I got great service from ukdigital. They dispatched a replacement KX800 the same day they received the faulty unit. They sent me an email telling me that it had been dispatched, and the tracking ID, and asking me to phone them when it arrived and before I started using it. When I phoned the chap I talked to was extremely polite, and gently asked if I had seen the note put in with the KX800 reminding users not to rotate the heads through 360 degrees on the end of the arms as this could break the cables. In fact I had, and had worked out that there was no way I was going to try any rotation at all of the heads on the arms. The heads do need to be turned up to 180 degrees, because they start out pointing backwards, towards the camera, but I had decided to avoid any rotation at either end of the arm, either where the arm is attached to the flash gun or the other end where the arm is attached to the main unit that sits in the hot shoe. It seemed to me that this was where the connections would be most vulnerable. Instead I had turned the heads by manipulating the central portion of the arms. Later in the conversation it turned out that when he had opened the returned KX800 the heads were the opposite way round from how they ship, and from this he quite reasonably wondered if I had rotated the heads directly. He also told me that the heads are in fact glued to the arms, so I was relieved that I hadn't even tried to rotate them. In fact, I think the written advice could beneficially be rather clearer about what is and isn't a good way to handle the arms and the direction of the heads. And following the discussion I am a lot more aware how exactly I am manipulating the arms and the likely stresses on the cabling (not least because it is in the back of my mind that I may have broken the first one anyway. I don't think so, but I certainly wasn't being as careful as I am now with this replacement.) But well done ukdigital. I suspect they thought (and just perhaps they were right) that I had broken the unit but they replaced it anyway. And like I said, they were extremely courteous and helpful when discussing this with me, which was potentially a quite difficult conversation.