curl --request POST \
  --url https://api.decodahealth.com/billing/adjustment/create \
  --header 'API-KEY: <api-key>' \
  --header 'Content-Type: application/json' \
  --header 'TENANT: <tenant>' \
  --data '
{
  "chargeId": "<string>",
  "amount": 123,
  "reason": "<string>",
  "providerId": "<string>",
  "locationId": "<string>"
}
'

{
  "chargeId": "<string>",
  "id": "<string>",
  "amount": 123,
  "createdDate": "2023-11-07T05:31:56Z",
  "adjustmentType": "WRITE_OFF",
  "providerId": "<string>",
  "locationId": "<string>",
  "reason": "<string>"
}