I work for Verizon Wireless, and they only time I see this is when customers are on a business plans, ELEU (Employee Liable End User) (meaning you get a discount through your company but you are responsible for your bill) the discount only applies to the primary line. Meaning that if you're on a family share plan the only line that will receive the discount is the the main line that's listed as the primary. There was an error that was applying the discount on secondary lines on the account, however that issue has been resolved. If you are a lucky person that the fixed passed, I wouldn't be for calling to bring that to anyones attention. Enjoy your extra discount.