My advice was to respond in person, not online.
Ditto but only as a first salvo.
If the misinformation campaign continues, other avenues of recourse are warranted and more likely to garner beneficial results.
If she can't get fuel from you she'll wind down her engine.
Unless she hasn't or doesn't or won't.
the customer is acting out of frustration and the desire to be heard.
Which serves as reliable evidence into her immaturity. Neither "frustration" nor any selfish, self serving "desire to be heard" is validation for using blogtelligence to disseminate lies, deception, disrespect, antagonism or slander.
Individuals that first seek to use the www to vent their unfounded, irrational, and self serving immaturity are individuals that rely on passive victims/targets.
I would rather listen to the complaint and satisfy (or at least pacify) customers than win fights and produce angry detractors.
No one is promoting negative or confrontational responses. But your passive, empathy based advice coupled with your inexperience with online reviews is weak advice, at best.
A private and polite but stern response and request to correct and cease any and all misinformation is a more prudent course.
If, a term purposefully penned by many here offering sage and
considered advice, rickryan "believe
s her actions are having a sufficient effect on
his reputation" pacifist methods of response allow the damage to progress and may provide evidence of future claims of habitual, contributory passiveness.