bind data to custom map

Hi,

I am trying to work out how to bind data from a file to a custom map.

The custom map was loaded as a topoJSON file and has map keys that have 2 columns which match 2 columns in the dataset i am trying to bind. However, i cannot seem to get them to join. If i drop a field from the dataset into the Color saturation box nothing happens on the map.

I have placed screenshots of the file keys, dataset matching columns and the map here:

https://ufile.io/fa9b3

Any advice gratefully received.

Regards,

Quentin