Fixed this and re-uploaded the file, but with a workaround for now of a default value of 0.24, turns out the USA supercharger costs are a bit more variable than over here, I'll work on that now by trying to read in characters 2,3,4 and 5 from the field with costs in as there is also text in there.
To do it, I'm using an ImportJSON script for Google Sheets, I pull down the specific URL, do some data fixing on some of the tables to make them compatible then concatenate the string at the end to get the output.
Sometimes differs per country / locale though, so with the USA one, you have different prices per location / car type (from reading the comments) and also there were a lot more fields to import.
For USA Superchargers, I used this URL (but replacing my unique ID with mmckay so you can use it):
https://api.openchargemap.io/v3/poi...s=3000&operatorid=23&levelid=3&countrycode=US
For destination chargers, I replace the levelid with 2