New GIFFGAFF Pay As You Go SIM cards You will get £5 free credit when you activate the SIM card. These are 3 in 1 SIM cards & can be used as - • Standard Sims • Micro Sims • Nano Sims Fits any Mobile Phone! FREE £5 credit when you top up at least £10. Giffgaff runs on the O2 network. Unlocked or O2 handset required to use.
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