O2 Pay As You Go Sim Card - £10 Stay connected with O2's Pay As You Go Sim Card. This sim card has all the features you need to stay connected on the O2 network with your pay-as-you-go service. Enjoy competitive rates and great coverage with this sim card. This is for sim card only and comes with no call credit. To be used with an unlocked mobile phone or phone locked to O2 network. The sim you receive may not have same artwork and/or offer as shown in listing image as offers and artworks frequently change.