Accredited, ask for references. Explains trouble areas (UV light). I have fooound that explaining the multi-step, multi-pass system gets custys to, on the one hand, say that it is TMI, but THEY are the best referrers! Just going in, smiling and cleaning never got me referrals :).
As @ OxiFreshGuy mentioned, lack of respect for carpet cleaner might be the answer or, if we dig little deeper, respect for ourselves at the first place.
Winner. we first need to respect ourselves as cleaners first. YUP.