I was cleaning it with wd40 and a paper towelHow the hell did it get scratched in there?That must be one of the best protected locations on your bike, excepting the insides of the tubes.
Unless you have a convincing explanation of how it could have received that scratch in that location, then I would be forced to conclude that it was a crack.
I would take it back to the to LBS. If you bought on-line, then a photo and an email should capture their attention.
PS: What are all those little hairy white bits all over the frame (last two pics)? Are they broken fibres from your CF frame?
I reckon a stone got in there and the movement of the suspension crushed it against the frame on the first photo the metal plate has got a Mark on it as well
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