How to fix mold imperfections on new bumper fillers

[WE4Turbo87]

I bought these new bumper fillers from Mike's Montes after reading the threads on here that said they were really good. The rears have these creases at the top of them though. Can I fix this with a heat gun? Looking at my car I don't think they're suppose to be there.

 

[pacecarta]

ends tuck into bumper , shouldn't be an issue

 

[WE4Turbo87]

ends tuck into bumper , shouldn't be an issue

Shit. I had them upside down. I'm retarded. Thanks