A metal-fence manufacturer had tried paid before and written it off as unprofitable. I rebuilt the channel around a single product and a quiz funnel – and it turned a profit in the very first month.
They’d run ads before and concluded the obvious thing: “ads don’t work for us.” The spend went out, leads came in vague and unqualified, nothing closed. So paid got written off – when the real issue was that the channel was pointed at everything at once, with no way to separate a serious buyer from a tyre-kicker.

The quiz shows only what’s relevant (gate dimensions are asked only if gates are needed). So before the first call we already know what the person wants and how serious they are. The live quiz is in Lithuanian; labels here are translated.
“Ads don’t work” almost always means “the funnel behind the ads doesn’t.”