30-09-2018 11:04 - edited 30-09-2018 11:05
We would have no idea where that has gone. Have you checked your phones data and compared that to what it says in My O2 http://www.o2.co.uk/myo2
If you have issues with it then you are best to call customer services https://www.o2.co.uk/contactus
I would suggest turning mobile data off wherever you can and just use WiFi...
30-09-2018 11:05 - edited 30-09-2018 11:05
When you change your tariff your data will reset to the new tariff amounts.
Bolt ons do not carry over to the change of tariff unfortunately.
OnePlus 6 (O2 & Sfr), Z3 Tablet (Three UK), iPhone7 (EE)