https://forums.moneysavingexpert.com/showthread.php?t=2906376

...and the three digit security code question...is more about retaining that information rather than asking for it....because once a direct debit has been set up for a certain time period...the company will automatically get paid by the bank and so they don't need to store your security code info - do they?....because if a hacker were to hack into O2 - they could then make off with all of those details...which as far as I know....had been what idiot-veg had been hoping to do...oh and another thing - he was in cahoots with EE 'shin beit' twat..."she's too stupid - she'll never get it"...go figure.