I’m on a train in the uk. To make things even worse, they’re handing out DfT survey QR codes. I decided to pass the time by filling it in. It’s by ‘Savanta Research’ and they’ve clearly never travelled by train. If you don’t get all the way to the end of a 15+ step form without submitting, you lose everything when you go through a tunnel and momentarily lose connectivity. It couldn’t be designed to be worse for filling in on the go.