

Might be. It is definitely a thing, though.
When I used to work for a large American corporation that sold products to consumers, they took it extremely seriously and breaking it would result in disciplinary action. It probably had something to do with advertisement laws, but it also easily could have just been because it makes the company look very bad.
one place even asked people to write fake reviews on Trustpilot/job sites
That sounds unethical, to say the least. Did they verify if you actually did it, or just “suggest” you do?
More likely: it goes to debt collectors, and debt collectors being the scum of the earth they are will try to trick her family into taking on the debt.