Hi @Agrs1974
If you mean the my Vodafone application, if you have only joined today, your account may not fully be on the system and until you have received your first bill and are out of the pro ratered billing period you won't be able to view any usage. It is also necessary to use mobile data and not WiFi when first accessing the application, this is needed for Vodafone to find your account and will use a small amount of the data allowance.
If you have set up your online account the application will follow.
Further info for you here First bill
