Verizon is a joke about allowing devices on their network. Just as little as 3 years ago Verizon in the middle of the iPhone fiasco (about AT&T refusing to unlock iPhone in 2009). Verizon promised to allow "unlocked CDMA" devices on their network.
All a scam. Notice Verizon says "verizon certified devices " now. So Verizon determines what can be on their network.