ERROR CODEMeaning
2801Required field is missing from the request. Please check our refund segment in our API docs
2802The refund request could not be processed because the underlying transaction has not yet been funded or txn_no is not found
2803The refund request could not be processed because the requested refund amount exceeds/lower the transaction amount.
2804The refund request could not be processed because the underlying transaction was already canceled
2805The refund request could not be processed because a refund request already exists against the given transaction
2806Value must be a valid URL