Concrete garden border / edging (Tiptree, Essex CO5)

Approx 5.5 - 6 metres of concrete border edging with 15cm / 6" wide base to keep it solid and upright. Just removed so needs a good scrub. About 10cm / 4" visible when base is dug in. See photos and it makes sense. Needs to be claimed by tomorrow morning or it goes to the dump with the rest of the garden waste. Tiptree, Grove Road estate.