Refunds HTTP Errors

HTTP Status Code	Error Code	Error Detail
`403 Forbidden`	3001	Invalid Credentials.
`403 Forbidden`	3002	Unregistered IP address.
`403 Forbidden`	3003	Merchant has no authorization to use this API.
`404 Forbidden`	4000	Payment not found.
`404 Forbidden`	4001	Refund not found.
`400 Bad Request`	5000	Invalid request.
`400 Bad Request`	5001	Invalid parameter: [parameter_name].
`400 Bad Request`	5002	Invalid transaction status.
`400 Bad Request`	5003	Country not supported.
`400 Bad Request`	5004	Currency not allowed for this country.
`400 Bad Request`	5005	User unauthorized due to cadastral situation.
`400 Bad Request`	5006	User limit exceeded.
`400 Bad Request`	5007	Amount exceeded.
`400 Bad Request`	5010	Method not available.
`400 Bad Request`	5011	Order refund id is duplicated.
`400 Bad Request`	5012	Insufficient funds.
`400 Bad Request`	5013	Unsupported operation.
`400 Bad Request`	5016	Amount too low.
`400 Bad Request`	5017	Invalid API Version.
`400 Bad Request`	5018	Chargeback in place for this transaction.
`400 Bad Request`	5020	Refund period exceeded.
`400 Bad Request`	5021	Acquirer could not process the request.
`429 Too many requests`	6000	Too many requests to the API.
`500 Internal Server Error`	7000	Failed to process the request.
`504 Gateway Timeout`	5010	Request Timeout.