They had a promotion that if you switched to Verizon you'd get a $250 gift card. Ended 11/30/19. There may be others that are current. Carriers favorite thing is getting customers from other carriers. They do more for them than they do for loyal customers
I am not sure you would have to go to the store and ask a sales associate
I think so, although the cellphone companies like when you go to use them from another carrier. I'd go into a Verizon store & see what they have to say
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