Eventually, it will be fixed, and reversing entries applied.
Care to formalize this as a bet? $50 says this will never happen on its own. Meaning VZ is content to collect the $2/mo per customer knowing their billing system is broken; VZ will never automatically and willingly give those charges back to the countless customers that have complained and those that have not complained.
I disagree that it's a minority of the base and that the word is "annoyed" and not "outraged". The fact is that Verizon is stealing from customers each and every month.
Also, how much effort (cost) will it take on VZW's part to investigate each case ? If this wasn't being pressed, at best, you would get a refund only on those that called in and complained, while there may be millions of customers being wrongfully billed.