"I understand and agree that Verizon is not liable for erroneous bill statements or incorrect debits/charges. If an error in the bill statement should occur, Verizon will be responsible for correcting it if and when I notify Verizon of this error."
Nice. They make an error, they're not liable, and they don't have to correct it if I don't tell them.
And, of course, I know what the bill should be, right?