Maybe O2 is a spendy option but it tends to work where we find ourselves so I'd be hesitant to move away.
https://www.o2.co.uk/shop/sim-cards/sim-only-deals#deviceType=phone&contractLength=P12M
Giffgaff is O2.
Weren't they throttled or something? I remember lots of people complaining about their service a couple of years ago.
@ChasnotRobert started
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Maybe O2 is a spendy option but it tends to work where we find ourselves so I'd be hesitant to move away.
https://www.o2.co.uk/shop/sim-cards/sim-only-deals#deviceType=phone&contractLength=P12M