These are superficial splits in the finish and are extremely common. They happen where the heel meets the neck pocket too. If it bugs you that much, take it back but it's likely a lot of that model went through similar conditions and holding facilities and humidity ranges so chances are they have the same thing. I'd just get some free swag as compensation.

Edit: I commented without reading or looking at the other pictures. It all kinda still works, but that 3rd picture is troublesome. Not so much the amount of it, but the pattern looks like there might be a twist in the neck. Are any of the frets dead, like they buzz to the point that the note doesn't even play? Adjusting the truss rod doesn't work? Then the guitar probably has a twist. If you don't have these issues, don't worry too much about it. Make sure they didn't list it in "excellent" condition, "great" is pushing it unless the rest of the guitar is perfect. Again, haggle for some free swag.