Order a free O2 sim now and get free unlimited calls and texts to anyone on O2 when you top up £15 a month, on top of your credit. Get up to 10% of your credit back every three months to spend on things you like, just for topping up. If you are already an existing Pay & Go customer and would like to change your tariff to O2 Unlimited, text NOLIMIT to 21300, free from your O2 mobile.
Plus, another added bonus of having an O2 account is you get to join O2 Priority Moments. They give away so much free stuff, it's well worth joining.
Click our button below to head over there and order your free SIM.