[katrinadavid]

hi
i live in uk, use a blackberry, unlocked, with 02 simplicity sim.

i just want to use whatsapp at home using my home wi fi.
im pretty sure my 02 sim deal has no data plan.
but when i went outdoors today, whatsapp was working,
i suspect i will be charged data usage for this.

how can i turn this off?

i dont understand the settings in blackberry.

i only want to use internet on phone when in my home, using my home
wi fi, and same with whatsapp.

mobile network settings, data settings, roaming, connection preference, etc.

can someone please help?
thankyou