Life / Charity Shops in Poland - where are they? I've got some old clothes [13]

I've got some old clothes that I would like to donate to some charity shop(s) in Warsaw. The trouble is, where are they? I've looked high and low for such places and found none.

All I can find is shops that accept your clothes, and then sell them off, pocketing the whole profit. Yes, these are second hand shops, not charity shops, cos no money is actually going to any charity other than the shopkeepers pocket.

I would like to find the Polish version of Oxfam or something like it. Or even where I know that the clothes are going to less privileged people than myself.

Do Poles believe in charity or giving things away for free? (Don't answer that. I already know the answer).