I don't doubt the OP has a real and frustrating problem with Verizon. However, pin numbers and related security things protect us from being hacked and the OP would be equally upset if his account had been hacked. It certainly is not good that he cannot contact anyone in Verizon to get his account access straightened out.
My experience with Verizon is that they are very responsive whenever I have had an issue (I do have a pin but don't remember being asked for it in normal interaction with Verizon). We have had a Verizon account since back when our original regional cell service was bought out by Verizon. I have gone through several Verizon pre-smart cell phones and smartphones. My wife and I now both have unlocked pure android smartphones and only deal with Verizon for the cell service and data plan. I highly recommend going this route.
Like most cell carriers, I always felt robbed by their lack of carryover for unused data but Verizon now does carry over unused data for one month so that works for me. Also, Verizon allows bumping up and down monthly data limits as needed to better fit one's needs. All this and the fact Verizon is the only carrier that has service in one place we spend a lot of time has kept me happy with their service.