A couple of days after the UK Fuel Finder service launch last month, I wrote a hobby site using its API to get the cheapest local fuel prices: https://fuelseeker.net. I too discovered prices which had obviously been entered in pounds rather than pennies, or even missing altogether some cases. You would think that they could have done a bit more basic data cleansing on the server to catch that type of thing.

But, hey, we’re all wise after the event. To their credit though, they do seem to be actively reacting to feedback. I also contacted them about the bad data issue, and they are now adding user warnings about bad price values at the point of data entry (according to https://www.developer.fuel-finder.service.gov.uk/release-not...).