Apologise first
Say you are sorry the box arrived in that state.
Ask for a photo
Request one clear photo of the box and contents.
Offer a fix
Replace the damaged item, send a new box or add credit.
Skip the return
Do not ask for a damaged item back if it is low value.
Tell them what happens next
Give a ship date or credit amount.
Fix the cause
Share the report with your packing or carrier team.