Sorry for the bluntness, but the truth is you're being a giant asshole to someone that stepped in to learn more about your situation from your perspective to see how the company they work for lost you as a customer. They could have been there for one day or a decade, and may or may not have anything to do with the place the product is at.

You expect some of this from a company perspective, as unhappy users are normally the loudest, but this was an individual trying to learn from you and you just shit on them.

Poor form, dude.