I am trying to test the Form Recognizer here: https://fott-2-1.azurewebsites.net/prebuilts-analyze
I created an account with the pricing tier F0, which is supposed to contain 5,000 free calls, including "AnalyzeImage".

But when I try to execute the test, I get the error message "The Analyze Receipt - Analyze Receipt Operation under Form Recognizer API (v2.1) is not supported with the current subscription key and pricing tier ComputerVision.F0.".
I noticed that the pricing page mentions an "S0" pricing tier, but I have no option to select "S0" - only "F0" and "S1".
What can I do to simply run some tests to see if the Azure Form Recognition fits my use case? Is there even a free test of the Form Recognizer available at all? Where can I find the pricing of Form Recognition for pricing tier "S1"?


