Can't see anything like that on mine. Are your regional and language settings set to UK or US? Mine are all set to UK.
It's strange.. in theory, if Cortana is switched off (the settings page confirms this - I dug it up by using search for cortana and swiped across to Phone), then there should be no entries at all.
Did you switch your region back to UK before your Data Sense renewed itself, or is it still ongoing and including your Cortana activity from earlier?
I did a hard reset yesterday with everything set to UK beforehand.
Just checked mine. Has appeared in Australia. I'm excited.