6 GB $70
2 lines @ $15/line each
So base cost before new phones = $100, So with taxes about $107 - I believe the rep was only quoting "service" and not the phones. We see this very commonly now. It is devious and not right, but that is what I see being done a lot.
Now you need to add the cost of the phones per month - $28 and $33 each approx by the Verizon web page
So total cost per month for 24 months is $168.
Your initial belief that $107 was too good to be true with 2 new phones was a true intuition.
You can complain and maybe get a one time credit or some free data, but you most certainly won't get $107 with the new phones.