O2 Free SIM offers & cashback

£5 cashback

Get your hands on a free SIM card from O2 with constantly great rates and fantastic top-up incentives

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Online cashback rates

£5 cashback

for an activated free sim

Last updated 10 April

Get your hands on a free SIM card from O2 with constantly great rates and fantastic top-up incentives

Order your free sim by 9am and you'll get it the next working day (subject to location and Royal Mail delays).

Our Pay As You Go tariffs are flexible.

With a Pay As You Go phone sim you also get lots of perks, just for being on O2. And you can keep your number, if you've joined from another network.

Fantastic FREE text offers - O2 are offering you Unlimited FREE O2 to O2 texts every month when you top up just £10 a month!