[pxl_rip]

Just to be sure I will ask in reply to their email as you said, am I right?

Correct.

It will keep all correspondence In the one place.

And in a first email i have to tell them only that i noticed the package was damage.
Only if they do not move on, in the following email i have to ask photographic evidence?

Absolutely spot on.

Did it.
They answered that will ask to the relevant department to investigate about this issue again.