azure text analytics over requesting

I am testing the new service called azure text analytics.

there is a limit of 5000 request per 30 days for the free test account.

I have an Excel file with exactly 1000 rows of text.

When I use the script provided from the demo, I expect to use only 1000 requests from the free account.

but somehow I used already all 5000 free requests for only 1000 rows of text.

this does not make any sense at all!

below, the 2 scripts (sentiment and keyphrase) I am using on the same xlsx file, so my total should be 2000 requests and not 5000.

could someone please explain to me what is this issue???

(text) => let
    apikey      = "zzz",
    endpoint    = "https://brazilsouth.api.cognitive.microsoft.com/text/analytics/v2.0/keyPhrases",
    jsontext    = Text.FromBinary(Json.FromValue(Text.Start(Text.Trim(text), 5000))),
    jsonbody    = "{ documents: [ { language: ""es"", id: ""0"", text: " & jsontext & " } ] }",
    bytesbody   = Text.ToBinary(jsonbody),
    headers     = [#"Ocp-Apim-Subscription-Key" = apikey],
    bytesresp   = Web.Contents(endpoint, [Headers=headers, Content=bytesbody]),
    jsonresp    = Json.Document(bytesresp),
    keyphrases  = Text.Lower(Text.Combine(jsonresp[documents]{0}[keyPhrases], ", "))
in  keyphrases

.

(text) => let
    apikey      = "zzz",
    endpoint    = "https://brazilsouth.api.cognitive.microsoft.com/text/analytics/v2.0/sentiment",
    jsontext    = Text.FromBinary(Json.FromValue(Text.Start(Text.Trim(text), 5000))),
    jsonbody    = "{ documents: [ { language: ""es"", id: ""0"", text: " & jsontext & " } ] }",
    bytesbody   = Text.ToBinary(jsonbody),
    headers     = [#"Ocp-Apim-Subscription-Key" = apikey],
    bytesresp   = Web.Contents(endpoint, [Headers=headers, Content=bytesbody]),
    jsonresp    = Json.Document(bytesresp),
    sentiment   = jsonresp[documents]{0}[score]
in  sentiment

 this is only one single refresh.