Hi Bob,
Thanks for posting. We can't tell what exactly used your data, so you may want to look into using this third-party data monitoring program that can.
Community members have suggested and used GlassWire, so feel free to ask them for tips on using it:
https://www.glasswire.com-Liz
If you have a tech or billing question and need help, please start a new thread in the appropriate board. Unsolicited Private Messages may not get replies.
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