@LindsayC
According to Google:
What does zero KB mean on a call?
Without further context, I would interpret the "(zero KB)" as meaning that something is not taking up any space, that there is no data there. It sounds like your phone is maybe missing some information about the call for some reason.
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.
Please select the post that helped you best and mark as the solution. This helps other members in resolving their issues faster. Thank you.
