Be vigilant concerning your data plans. I recently downgraded my plan, because I have access to Wifi during the day and evening. On Monday, July 20, 2015 I started receiving alerts that my data usage had reached its 75% mark. Five minutes later I received another message that my data had reached its 90% mark. This occurred as the clock approached 6:00PM. Immediately, I contacted Verizon, and was told by the first representative that I spoke with that I had used the majority of the data causing the overages on July 17, 2015. Then his supervisor, named Kasey, spoke to me, at my request, and informed me that the rep's information was inaccurate. His records indicated that I had only used a fraction of my data. Kasey deceived me and told me that he would correct the erroneous data charges on my account, but he first needed to let the system reset itself; so he asked me to give the system a few days and he would contact me on Friday. But, when Friday, July 24, 2015 arrived, he had a completely different story. He claimed that the system had updated itself and the data usage that resulted in overages occurred on Monday, July 20, 2015. He claimed that I had used 2GB of data in 4 hours. I downgraded from 5 GB to 2GB, and at no time in my usage history, have I used 2GB of data in 4 hours. And I stream music, audiobooks, and videos. Despite the usages that Kasey claims were the cause of overages, I have alerts set on my phone that I did not receive until an hour after I had incurred the usage that resulted in overages? That's impossible. Verizon is trying to recoup the money it's going to lose from me because of my downgrade.
To protect yourself, if you have a smartphone, turn off your cellular data whenever you rely on WIFI. That's what I plan to do starting today. Thank God I no longer have a contract with Verizon and my current phone is unlocked.