http://consumerist.com/2011/06/canceling-verizon-without-etf-over-fee-increase-is-hard-but-doable.html
Heres a follow up to one of your links. Its a crap shoot and honestly depends on who answers the phone
Text, voice, data, and features count as the adverse changes listed in the contract. Fees, surcharges, and taxes are listed as being subject to change and possibly without notice.
What kind of phone is it? How long has she had it? I just closed one of my lines early and sold the phone to make up for the contract fee.