We've all been there. 

Turning your smartphone every which way to make a site work so we can make a purchase, clicking back and forth between pages looking for the checkout button. 'Did I put my delivery address in? I think I did, did I?'

 It's all too common a problem even today, in the 'Golden Age' of digital, an age of facial recognition and dash buttons. Hayley Silver looks at some of the ways brands are putting off mobile shoppers.