got a call from someone saying they were from 02 offering me deal £15 a month but wanted all my details so i says no . does anyone know if this exists £15 all free? and why would they want details over phone
If you are not a customer of O2 don't tell them anything. Even if you are a customer of O2 treat it with caution. Phone them back on a number you know is genuine if you're interested.
They are most likely to be after your bank/credit card details so they can empty your bank account.