Contact Verizon. Apple is not here, only users like you.
And no, Apple does not have any responsibility to notify Verizon.
Your wireless contract was between you and Verizon - only
Verizon can straighten it out. Do not delay or you may run into
charges for another month. You are responsible for charges as long
as contract is in effec, whether you use iPhone or not. You will
probably also be charged an ETF (early termination free) to get
out of your contract before the 2 year period ended.
If Verizon informed you that account would be cancelled automatically,
the person who told you that mis-spoke. Go back to that location for
assistance- ask for the manager if necessary.