I worked in call centers for years and we laughed at people like you for a whole multitude of reasons.
The main reason being once you say this I'm no longer obligated to help you. Since you've decided to make this a legal situation instead of a customer service one you'll now need to talk to our team of lawyers that are on retainer. Anytime you call or email you'll get auto routed to our legal department forever who will go out of their way to not help you.
The reality is that people make legal threats dont actually follow through because they aren't people that understand the law or how it works, if they did they'd be taking actual legal action against us, not making idle threats to people making $19 dollars an hour.
Again I'm not threatening to bring legal action. I'm just letting the 800 lb gorilla know about the situation and they perhaps might want to do something.
Plus the following dialogue: what was your name?...I am reporting you to xyz state attorney general's consumer fraud division is incredibly effective.