I've enabled statistics and can see the stats in my admin screens.
I've configured the suggestions (for all language and websites just in case). Both the REST API and the c# API returns back zero hits.
The REST API url: http://mywebsite/find/rest/didyoumean/get/buttlefield?size=1
c# API code
var didYouMean = client.Statistics().DidYouMean(filter.Term, 1);
I'm using version 126.96.36.1993
I got it to work by creating a new index - not sure why my existing index didn't work