I bought a Canon 7D MkII at the Photography Show from the Calumet stand. Unfortunately, when I unboxed it the following day and started to set it up, I discovered a piece of dust/grit in the viewfinder which could not be removed by cleaning or by using a blower on the inside. I contacted Calumet straight away and thankfully, after originally being told to follow the returns procedure, they subsequently arranged for a courier to collect it from me that day, which I was very thankful for. A few days later I contacted Calumet again to try to find out what was happening and was told that the warehouse had received the camera but that it had not yet been looked at. With Easter in the way of things, I left it a full week before contacting Calumet again. After some time on the phone it was established that the camera had been sent back to Canon. I stated that that I had requested a replacement, not a repair for something that had been sold to me with the problem in situ. Thankfully, the customer services person arranged for a next day (morning) delivery of a replacement from their warehouse. I was able to finally relax and breathe a sigh of relief. So, in essence, I found that the lack of any communication between the time the first camera was collected from me and the time I phoned over a week later to be frustrating. I'm glad I did phone again in the end because it was the only way I found out that the camera had been sent back to Canon. Had I not phoned, I might never have got a replacement delivered. This lack of communication in my case is why I give only four stars. On the other hand, I found the Customer Services to be excellent on the phone and able to make decisions that (in my case) definitely put the customer first.