All I wanted was an adjustment for the errors. I've got no problem paying what I am supposed to pay, it isn't like I was seeking customer satisfaction credits (the first rep asked how much credit I was looking for when I asked for her supervisor, and went on to say that perhaps she could just issue a credit, how much do you want?). Another rep (this one a supervisor) tried issuing credits for all kinds of stuff that wasn't billed wrong, but failed to see that I was being double billed.
Anyway, I hope you never have complex billing issues with Sprint. If you do, go ahead and call in as soon as you get the bill and recognize the error, and climb the chain of command as far as you can above the first two levels. You might have to wait for a callback, which is why you shouldn't put off the initial call.
Basically, whenever I have a problem with a company, I will write a post about it. Not to worry, I will keep it professional, and strive to present the facts -- no need for personal attacks. If a company steps up and resolves the problem, I'll write about that too. Of course, the next logical category is for Companies the Rock, or something similar. Maybe tomorrow.