curl --request POST \
  --url https://api.synctera.com/v1/cards/transaction_simulations/reversal \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "amount": 80,
  "find_original_window_days": 6,
  "is_advice": false,
  "network_fees": [
    {
      "amount": 123,
      "credit_debit": "C",
      "type": "ISSUER_FEE"
    },
    {
      "amount": 123,
      "credit_debit": "C",
      "type": "ISSUER_FEE"
    }
  ],
  "original_transaction_id": "original_transaction_id"
}'

{}