Invoicing for donation of used goods without writing the amount
You want to ask is the donation of second-hand supplies invoicing does not write the amount of how to do? You can report a complaint to the relevant authorities.
Donations must be written amount, if the amount can not be valued need to go to a third party valuation.
Used, used, reprinted, not at first. Something that is used and then sold. Used objects to trade, not first-hand meaning.