I saw a recent announcement that 5 GB could be purchased for a monthly charge of $1.99. I had been paying this price for 1 GB and saw nothing on Verizon's web site to indicate that my account had been upgraded to the new 5 GB.
I found myself having to cancel the old subscription and to place a new order for the 5 GB. This should not have been necessary - it should have happened seamlessly and Verizon should have sent a notice to all users that their quota had been increased.