[ErPazzoide91]

what do you think is the best (safest) option to refund around 1 -1.5k for clothing stores?

It depends on the store and the Item(s) you're Intending to refund.

I read on your blog how FTID is BAD. I changed my mind, is LIT better?

The LIT Is a variant of the so-called FTID, of which I support neither of the two.

Pretty much anything, jackets, hoodies, shoes, on all major clothing stores, ASOS, Zalando, Nike etc.

I think at this moment DNA is the best option, but the fact that I can ruin the job of the courier makes me uncomfortable.
I can't do EB for sure because 1.5k value of stuff is for sure heavy, also partial not doable.

Do you know which is the value that doesn't trigger investigation for DNA in ASOS, Zalando and Nike?