I know I rely on my phone's data all the time, both on WIFI and on the Verizon Wireless network. It's upsetting when there's an unexpected spike in usage, thebloodyscott. It's good that you checked on the WIFI setting. Here's more helpful information on how to see more detail about how that data was used: https://www.verizonwireless.com/support/knowledge-base-152114/ Please keep us posted on what happens.
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