Level Glitch

I did not level up my Dimetrodon, but when I hit the red X to exit his screen it leveled him up and wasted all of dna I was saving can I please get some support help please!

They won’t do a thing for you. I’ve tried.

3000+ dna lost and they won’t do anything?

Nope. That’s an error on your part.
Pretty sure they made the leveling as it is on purpose.