That looks like your car has had a rear end impact,. Transit damage that you are not aware of....possibly!
I agree that panel looks warped
That is what struck me, the panel has a definite ripple to it. Even if a spot weld had broken away that doesn't explain the warped panel.
Curiosity got the better of me, so I have just been out to the garage and pulled the trim back on my car to make a comparison. Below is a picture of mine, quite different!
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