Bought a verizon prepaid moto g. wait 6 months before i can use it with an existing contract?

[AC Question]

I bought a verizon prepaid moto g , do i have to wait 6 months before i can use it with an existing contract? i'd like to switch my existing number over to it but i demands that i wait 6 months before i can switch over to that. is there a way to bypass that ?