I've looked through the manual, but nothing. I've also tried accessing the menus for the drivers information system but nothing in there either. If I find out I'll post it here.
Just an update the car has been fine with no incidents, have 1 tank Shell, then 1 Supermarket and all good. I fill up every 3 days so will be reaping both the Nectars and the Shell loyalty points. It's on an app now so just show them the Shell barcode on your phone and its logged that you've been in.