Where is the "Customer" in Customer Service?

So, as I'm writing this I just finished a phone call with ANOTHER lovely billing agency! This has been the worst part of moving. . .talking to 'them'. Yes, the dreaded customer service agents from cable companies, gas companies, phone companies, and the list goes on. . .but one thing remains the same: they always make the promise that they are here to help you. Then, why do they always start the conversation defensively and always blame us, the customer? I feel like I am the JOKE of the world. . .there is this other world of people "out there" who just make up information, knowing that I can never find the truth nor ever find that same person again when I call back. Of course, it's usually 3 weeks before I realize that I was told something incorrectly! Then, call back and the next "customer service" representative almost laughs when he is told what the previous rep said. . .never an apology. . .no, I, the customer, always did something wrong. . .I believed what I was told. Then, I get really upset, say things in a not-so-nice way, then hang up hating myself for losing control! I'm glad Jesus gave the gift of grace because I need a lot of it right about now!