Hey Helen Simpson 👋 Thanks for your question :)

Since what3words is not a mapping app, our grid is overlaid onto existing maps. We're not able to update this as our maps are provided by either Google Maps, Apple Maps or Mapbox depending on your device. You can see which by checking the icon on the bottom left of the screen.

You can report map errors by using the links below and hopefully they'll update it soon 🙌

Apple Maps: https://support.apple.com/en-us/HT203080

Google Maps: https://support.google.com/maps/answer/3094088?co=GENIE.Platform%3DDesktop&hl=en

I hope this helps, and please feel free to ask any other questions if needed :)... (More)