I’m with Malc on this.
I have a ‘all-in-one’ leaflet that is all of the following – ‘flyer’, ‘terms & conditions’, ‘receipt’ and ‘explanatory leaflet’.
When I give them a quote, I briefly explain WFP cleaning to them and leave them a leaflet which they can read when I’ve gone. I say “Give it a go – if you don’t like the system, or the results, you don’t have to have it done again”
The leaflet also says that ‘Either party may cancel further cleans at any time’. This seems to put their mind at rest.
Mike