Potting soil/medium (Kingsmead)

underestimated what we already have, and now in need! Has anybody any unused (or used but 'clean') soil/ medium lurking about and no longer needed? Any amount will be welcome..old gro-bag medium, or potting compost.. etc. if you can spare a small amount,, collecting would be by bus, but if it's more than can be managed/carried (ie more than a sackful), it would be truly wonderful if it could be dropped off for us at the bottom of town. The plants won't mind if it's sandy, or peaty, or anything in between as we can mix it in with what we already have to make a welcome for them.