curl --request POST \
  --url https://api.introw.io/api/v1/commission-lines/{id}/decline \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "reasonType": "DUPLICATE"
}
'

const options = {
  method: 'POST',
  headers: {'x-api-key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({reasonType: 'DUPLICATE'})
};

fetch('https://api.introw.io/api/v1/commission-lines/{id}/decline', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://api.introw.io/api/v1/commission-lines/{id}/decline"

payload = { "reasonType": "DUPLICATE" }
headers = {
    "x-api-key": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

{
  "data": {
    "id": "cln_5o4n3m2l1k0j9i8h7g6f5e4d",
    "partnerId": "ptn_01HVK6Y8Z8Q7J8J8J8J8J8J8J8",
    "payoutId": "pay_2x7n4q8z0w1a2b3c4d5e6f7g",
    "description": "Q1 referral bonus",
    "amount": "500.00",
    "sourceAmount": "10000.00",
    "currency": "USD",
    "status": "VOIDED",
    "planName": "Referral plan",
    "periodEnd": "2026-03-31T23:59:59.000Z",
    "createdAt": "2026-04-05T09:00:00.000Z",
    "updatedAt": "2026-04-05T09:00:00.000Z"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "details": "<unknown>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "details": "<unknown>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "details": "<unknown>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "details": "<unknown>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "details": "<unknown>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "details": "<unknown>"
  }
}