Eh, i’ve seen strange things happen with Verizon as well since I go through a lot of phones.
For example I used an XV6700 pda phone for a while and decided to stop using it. I let my friend use it as a PDA for a while come to find out for some reason my text messages were being duplicated on that phone still even though I got a new phone (I was receiving the text’s on my phone as well).