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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