Bunnings black plastic pot bin, take or just deposit?

As per the title, my bunnings and many others (as well as flower power) have a big bin where you can throw out your old black plastic plant pots.

Anyone know if it’s kosher to take from them as well or just to donate (the signs don’t specify) I’ll ask the staff if I have to, but not heading out that way on purpose anytime soon unless they are free cause I do need some extra pots for propagation