The difference U can make,

Clo and I turned up to remove the Mold from Mrs C's house,

It turns out she didn't want the kitsch souvenirs of Mold - the town in North Wales removed from her living room; but mould! that was growing on the walls.
That is the simple difference U can make.

In terms of the Mission itself Clo and I removed the worst of the mould so hopefully she will no longer be impacted by the spores, and can live without the health risk.

Notes: GG Mission team spelt Mould correctly on the instructions the misunderstanding is purely my own, and the photo is from the Wikipedia page on Mold, Flintshire.