They obviously decided to save money and not code stuff directly into the App, so just turned it in a web browser to open up the myVolkswagen page. Once you login, if you scroll down you will get the driving data display, it's just the mobile version of the web page, no different if you logged in on your phone using Chrome, Safari, etc.
I was having issues with selecting my Preferred Workshop, so decided to login on the laptop, so much easier than on the phone, and yes, it has lost my previously selected workshop, and to try and input a new one keeps throwing up an error every time I put in a postcode or town to search.
Also some stuff in the myVolkswagen web page show up as Miles (I'm UK Based), but other bits show up as Kilometres. Got confused when the mileage looked way higher than it should be when looking at the Health Report, and then realised it was displaying Km!