curl --request PATCH \
  --url https://www.referly.so/api/v1/sales \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "saleId": 123
}'

{
  "success": true,
  "alreadyRefunded": true,
  "reason": "<string>"
}