Needed a new SIM in the UK recently so ordered a pay as you go one from Vodafone. Discovered to my horror that the new payg 'plus' can only be used with an app (that's locked to UK Google play Store) and a credit card for monthly recurring payments. No possibility of buying credit on a website or In store. Presumably so Vodafone can slurp up credit card details and all the juicy data mentioned in this article. Tossed in the bin and found a regular old school payg sim that I can top up with cash from a corner shop, but presumably this won't be possible for much longer.