@07686331 Hi There, the best way to monitor your data usage is to use the My3 usage dashboard. Setting a data limit on your phone doesn't guarantee that you won't go over the usage limit & be charged. The data events on your My3 account should be displayed as sessions in the day. If they're not showing like that for you can I get you to PM me your number along with your full name, address, & date of birth & I'll check on your usage.