diff --git a/src/Payeezy/Transaction.php b/src/Payeezy/Transaction.php
index 790064b..820759a 100755
--- a/src/Payeezy/Transaction.php
+++ b/src/Payeezy/Transaction.php
@@ -131,7 +131,7 @@ public function postTransaction($payload, $headers)
   public function doPrimaryTransaction($args = array())
   {
     $this->url = $this->baseURL;
-    $payload = json_encode($args, JSON_FORCE_OBJECT);
+    $payload = json_encode($args);
     $headerArray = $this->hmacAuthorizationToken($payload);
   
     $response_in_JSON = $this->postTransaction($payload, $headerArray);
diff --git a/tests/Payeezy/CreditCardTest.php b/tests/Payeezy/CreditCardTest.php
index cb276a2..bca2903 100644
--- a/tests/Payeezy/CreditCardTest.php
+++ b/tests/Payeezy/CreditCardTest.php
@@ -14,6 +14,61 @@ private function getPrimaryTxPayload()
       "card_number" => "4788250000028291",
       "exp_date" => "1020",
       "cvv" => "123"
+    ),
+    "billing_address" => array(
+      "street" => "123 Fake St.",
+      "state_province" => "NY",
+      "city" => "New York",
+      "country" => "USA",
+      "email" => "test@phpunit.com",
+      "zip_postal_code" => "12345",
+      "phone" => array(
+        "type" => "Cell",
+        "number" => "123-456-7890"
+      )
+    ),
+    "level2" => array(
+      "tax1_amount" => "100",
+      "tax1_number" => "101",
+      "tax2_amount" => "200",
+      "tax2_number" => "202",
+      "customer_ref" => "7000"
+    ),
+    "level3" => array(
+      "alt_tax_amount" => "100",
+      "alt_tax_id" => "1000",
+      "discount_amount" => "5",
+      "duty_amount" => "6",
+      "freight_amount" => "7",
+      "ship_from_zip" => "10000",
+      "ship_to_address" => array(
+        "address_1" => "123 Ship St.",
+        "city" => "New York",
+        "state" => "NY",
+        "zip" => "12345",
+        "country" => "USA",
+        "email" => "shipto@me.com",
+        "phone" => "555-666-7777",
+        "name" => "The Customer"
+      ),
+      "line_items" => array(
+          array(
+            "description" => "Tacos",
+            "quantity" => "10",
+            "commodity_code" => "090909",
+            "discount_amount" => "69",
+            "discount_indicator" => "1",
+            "gross_net_indicator" => "0",
+            "line_item_total" => "14300",
+            "product_code" => "Level3",
+            "tax_amount" => "100",
+            "tax_rate" => "5",
+            "tax_type" => "2",
+            "unit_cost" => "1500",
+            "unit_of_measure" => "EA",
+            "email" => "tac@os.com"
+          )
+      )
     )
     ];