Feedback on Charging Networks or Chargers

Every now and again, I see a notification that one of the charging providers has reduced charging cost to £0/Kwh. This is presumably due to excess renewables on the grid and is valid for a short period.

When I tap that notification (on IOS) to find the said charger, I am presented with the usual home screen of OVO and am unable to locate the free charger. Could you please add a filter to show the currently available free chargers.