curl --request GET \
  --url https://api.linearsend.com/transaction/reference/{reference} \
  --header 'Authorization: Bearer <token>'

{
  "success": true,
  "statusCode": 123,
  "code": "<string>",
  "message": "<string>",
  "data": {
    "reference": "<string>",
    "batch_reference": "<string>",
    "status": "<string>",
    "amount": "<string>",
    "fee": 123,
    "currency": "<string>",
    "narration": "<string>",
    "completion_date": "<string>",
    "trace_id": "<string>",
    "message": "<string>",
    "customer": {
      "account_number": "<string>",
      "name": "<string>"
    },
    "metadata": null
  },
  "meta": {}
}