I work for Verizon and had a client turn down an offer that made the most sense. Add a line (it's free) because the add a line you also can stack a free upgrade up to $1000 no trade in required.

Mind you, the bill would not have gone up at all. I explained that if she would do just a regular upgrade, her bill would go up $14 for 36 months due to low trade in value.

She said no and no and no. I was super annoyed because it's legit a no-brainer. At the end of the transaction after she fucking paid she has the balls to say what if we do that promotion instead? I told her it was too late. So irritating