DISAPPEARING DATA AND AIRTIME FROM VODACOM

Please can someone show me how to see where our data and airtime have disappeared to? We can view our account but we cannot see any itemization for where all our data has been used up? This is very frustrating as we get no low data warning. And have been recharging 3 to 4 times per month and still keep running out. Mobile data usage is already switched OFF for most apps so please do not send some generic response telling me to change my phone settings.

I just want to know WHERE I can see my itemised data and airtime usage!