That’d certainly be a good step, but I think it still only incentives them to hear you out. Since in this case you would have demonstrated to them that you were a customer that risks costing them money (in the form of this appeal if nothing else) they’re still incentivized to not do business with you if given the option.

Even in the case of something like a credit card company where it’s not technically a monopoly, you risk them all coming to the same conclusion.

Essential for-profit service combined with at-will service is simply a recipe for failure.