That's fine for the fly tipping bit but there's not much the council can do about the unbadged advertising hoarding as it is affixed to the flank wall of whatever shop that is so I think it's the freeholder who need to be contacted. Whoever operated the hoarding clearly no longer does but the freehlder may have the details of the operator who should be asked to remove it pronto.

The hoarding may or may not have planing permission so that's another avenue to explore but my guess is that whoever put it up wasn't too concerned about pp...