One is a stock image of clematis wilt from the RHS website. The others are a plant I recently bought from J Parkers, and its replacement.
I have bought plants from them and their wholesale arm Dutch Bulbs in the past. They are generally OK and a good price if you need a lot. However a recent order included a clematis that clearly had wilt, all the stems were black and most of the leaves had big black patches. It was replaced promptly but the replacement is exactly the same.
Their response is that 'there is one black spot and the other leaves are healthy' and 'all our plants are inspected under DEFRA regulations'. They will refund me if I send them back, which I suppose is reasonable, but they seem to have no quality control whatsoever.
I am slightly mollified by the fact that these images are showing as 'sensitive' so I feel there is some solidarity out there somewhere.