Can I exchanging my pet for another?

Hi, I bought a celestial cat pet about 3 or 4 days ago because I think the cat do it all the colors and the behavior, but waiting for it, he don't do the colors change and all the things, then looking in the microtransaction shop I realize the pet I want was the sunprism cat pet, but I don't knew that pet exist, I believed was the same pet, then the question is can I change that pet I bought (Celestial Cat Pet) for the sunprism cat pet? I have the difference of points extras to do it if you give me the chance.