[mothered]

So if they accuse me of SEing or scamming them and when they mention their cameras or show me footage (for example regarding the wrong item method) I just say "oops" I still got it here I mixed it up?

Simply say you received multiple packages from different stores on the same day and mixed up the Items.

But as we all know, whatever I put in there, they will throw it into trash.

Yes, It's Amazon's policy to disposed of Incorrect returns.