I realise that fraud is a serious concern but is it really necessary to keep asking me to authorise payments for my groceries when using Tesco.com? Every other time recently when I place my order (something I've been doing for many years once week) I have to go and fetch my mobile phone to authorise it.
Quite honestly I'm getting fed up of it. I've done a test with my Barclaycard and even though I've never used it on Tesco.com (or at least not for many, many years) the payment went through without comment.
What makes you so special? Online shopping is supposed to be simple and easy. I'm not supposed to have to go upstairs, dig my phone out of my jacket pocket, log onto your app then come all the way back downstairs just to order something.
If your antifraud systems can't recognise a weekly shop for groceries then frankly you don't stand a chance of preventing fraud.