“Throughout this process, I was always calm and respectful to the people I talked to, as they’re just doing their job, and (in my opinion) if they can’t do something, it’s better to ask them to transfer you to someone that has the ability to do so instead of yelling at them.”
As someone who’s had to work at a call center (for a tax website – oi!) as well as in several customer service jobs, I really appreciate that. Unless they specifically note that they’re a supervisor/manager, there really aren’t any rules they can bend for the customer without possibly losing the job. Wish more people followed that advice as well.