Decline a commission line

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"
}
'

{
  "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"
  }
}