The good payment history, as Ann154 states, means payment on time monthly. Instead of voiding a customer's "good payment history" for a late payment six years ago, for example, they instead limit it to the past six months. And the six months to wait for good payment history to be restored begins on the day the late payment was made. The policy might not suit what you want, but VZW is adhering to the guidelines with every customer. Telephone agents aren't able to change bill to account status, either.