It seems like poor customer service that Verizon will offer new customers that switch to Verizon or customer that add a line special deals or discounts that are not available to their regular customers. A good example of this is that new customer that switch or an existing customer that adds a new line can get the Moto Z2 Play for $5.00 a month ($12.00 a month discount). Existing customers must pay $17.00 a month.
It seems like Verizon's loyal customer should look elsewhere to see what deals other companies are offering.