I'm new to a vets practice that uses concur and have so far spent 13 hours trying to submit my first month's mileage claim. What an absolute disgrace this system is.

The latest hurdle I'm facing is that when I add 2 postcodes, instead of telling me the distance between them it just says "route cannot be calculated. Either one of the waypoints is incorrect or route is not driveable." Well the route is driveable because I drove it. Any help would be very much appreciated!