You sound like an absolute nightmare client.

You hired a professional and then immediately discarded their judgement. You’ve then gone online to slag them off with little detail, and apparently fired them before seeing any results (positive or negative) from the campaign she created.

You keep mentioning “collecting valuable data”, but did you actually communicate to her that was the goal on the campaign to begin with? Did you also communicate that you would be happy with higher (perhaps even non-viable) CPAs during the research phase?

From what little you’ve described it sounds like she set up a tightly targeted, conservative campaign – the type you would expect to return immediate results at a reasonable price. This is not uncommon for small-business accounts, as such clients are prone to pulling the plug on management services if they get a big bill from Google before having had a meaningful increase in inquiries. Demonstrating results first and then scaling up is often the best way to retain nervous clients (which you obviously are, given your knee-jerk reaction here).

Regardless of whether this manager is any good or not, I can guarantee she’s better off without you as a client.