diff --git a/client.go b/client.go
index 4f56713..e9255e0 100644
--- a/client.go
+++ b/client.go
@@ -7,6 +7,8 @@ import (
 	"log"
 	"net/http"
 	"os"
+	"reflect"
+	"strconv"
 	"time"
 )
 
@@ -103,7 +105,10 @@ func (c *Client) ExecuteRequest(req *http.Request, v interface{}) error {
 	}
 
 	if v != nil {
-		return json.Unmarshal(resBody, v)
+		if err = json.Unmarshal(resBody, v); err != nil {
+			return err
+		}
+		reflect.ValueOf(v).Elem().FieldByName("StatusCode").SetString(strconv.Itoa(res.StatusCode))
 	}
 
 	return nil
diff --git a/paysource.go b/paysource.go
index eb323a0..a42697a 100644
--- a/paysource.go
+++ b/paysource.go
@@ -7,6 +7,9 @@ const (
 	// SourceBankTransfer : bank_transfer
 	SourceBankTransfer PaymentType = "bank_transfer"
 
+	// SourceBNIVA : bni_va
+	SourceBNIVA PaymentType = "bni_va"
+
 	// SourcePermataVA : permata_va
 	SourcePermataVA PaymentType = "permata_va"
 
@@ -76,6 +79,7 @@ var AllPaymentSource = []PaymentType{
 	SourceEchannel,
 	SourceIndosatDompetku,
 	SourceMandiriEcash,
+	SourceBNIVA,
 	SourcePermataVA,
 	SourceBCAVA,
 	SourceIndomaret,
diff --git a/paysource_test.go b/paysource_test.go
index 261090e..5975ef2 100644
--- a/paysource_test.go
+++ b/paysource_test.go
@@ -11,6 +11,9 @@ func TestPaymentType(t *testing.T) {
 	is := is.New(t)
 	is.Equal("credit_card", midtrans.SourceCreditCard)
 	is.Equal("bank_transfer", midtrans.SourceBankTransfer)
+	is.Equal("bca_va", midtrans.SourceBCAVA)
+	is.Equal("permata_va", midtrans.SourcePermataVA)
+	is.Equal("bni_va", midtrans.SourceBNIVA)
 	is.Equal("cimb_clicks", midtrans.SourceCimbClicks)
 	is.Equal("danamon_online", midtrans.SourceDanamonOnline)
 	is.Equal("mandiri_clickpay", midtrans.SourceMandiriClickpay)
diff --git a/request.go b/request.go
index 12c91ef..d11c401 100644
--- a/request.go
+++ b/request.go
@@ -29,13 +29,13 @@ type CustAddress struct {
 // CustDetail : Represent the customer detail
 type CustDetail struct {
 	// first name
-	FName string `json:"first_name"`
+	FName string `json:"first_name,omitempty"`
 
 	// last name
-	LName string `json:"last_name"`
+	LName string `json:"last_name,omitempty"`
 
-	Email    string       `json:"email"`
-	Phone    string       `json:"phone"`
+	Email    string       `json:"email,omitempty"`
+	Phone    string       `json:"phone,omitempty"`
 	BillAddr *CustAddress `json:"billing_address,omitempty"`
 	ShipAddr *CustAddress `json:"customer_address,omitempty"`
 }
@@ -52,7 +52,7 @@ type CreditCardDetail struct {
 	TokenID         string   `json:"token_id"`
 	Bank            string   `json:"bank,omitempty"`
 	Bins            []string `json:"bins,omitempty"`
-	InstallmentTerm []int8   `json:"installment_term,omitempty"`
+	InstallmentTerm int8     `json:"installment_term,omitempty"`
 	Type            string   `json:"type,omitempty"`
 	// indicate if generated token should be saved for next charge
 	SaveTokenID          bool   `json:"save_token_id,omitempty"`