Hmm, O2 UK doesn't actually offer any unlimited data packages as far as I'm aware: https://www.o2.co.uk/shop/simplicity https://www.o2.co.uk/shop/simplicity Th

Hmm, O2 UK doesn't actually offer any unlimited data packages as far as I'm aware: https://www.o2.co.uk/shop/simplicity https://www.o2.co.uk/shop/simplicity This might still be real, but if it is then it's either based on an old tariff or another country's O2.