

Is this a concern?
I have three Evenflo All4stages Slim car seats bought this August. Two of them have this weird separation on the seam of the base and one is even a bit wavy/dented on the corner as well. I can actually press in the section in the first photo a little bit as well. The rest of the base sits flush at this seam.
I reached out to the car seat company and they said this is normal flexion and the seats are safe. Should I investigate this further or is this truly not something I should be concerned about?
Thank you!