diff --git a/src/include/class-wc-retailcrm-history.php b/src/include/class-wc-retailcrm-history.php
index 767dfcb..655a3f8 100644
--- a/src/include/class-wc-retailcrm-history.php
+++ b/src/include/class-wc-retailcrm-history.php
@@ -1006,15 +1006,14 @@ if (!class_exists('WC_Retailcrm_History')) :
         /**
          * Returns data for address_1 and address_2(if exist data for this field) for WC order.
          *
-         * @param string $addressLine
+         * @param string $addressLine|null
          *
          * @return mixed
          */
-        private function getAddressLines(string $addressLine)
+        public function getAddressLines(?string $addressLine = '')
         {
             if (strpos($addressLine, WC_Retailcrm_Abstracts_Address::ADDRESS_LINE_DIVIDER) !== false) {
                 $addressLines = explode(WC_Retailcrm_Abstracts_Address::ADDRESS_LINE_DIVIDER, $addressLine);
-
                 return ['address_1' => $addressLines[0], 'address_2' => $addressLines[1]];
             }
 
diff --git a/tests/test-wc-retailcrm-history.php b/tests/test-wc-retailcrm-history.php
index 89da0ab..48603bb 100644
--- a/tests/test-wc-retailcrm-history.php
+++ b/tests/test-wc-retailcrm-history.php
@@ -57,6 +57,7 @@ class WC_Retailcrm_History_Test extends WC_Retailcrm_Test_Case_Helper
 
         if (is_object($orderItem)) {
             $this->assertEquals($product->get_id(), $orderItem->get_product()->get_id());
+            $this->assertEquals($product->get_id(), $orderItem->get_product()->get_id());
         }
 
         $this->assertNotEmpty($wcOrder->get_date_created());
@@ -734,7 +735,23 @@ class WC_Retailcrm_History_Test extends WC_Retailcrm_Test_Case_Helper
         $this->assertEmpty($order->get_customer_id());
     }
 
-    /**
+    public function test_get_address_lines()
+    {
+        $retailcrm_history = new \WC_Retailcrm_History();
+        $this->assertEquals('', $retailcrm_history->getAddressLines());
+
+        $this->assertEquals('Test', $retailcrm_history->getAddressLines('Test'));
+
+        $this->assertEquals(
+            [
+                'address_1' => 'Test',
+                'address_2' => 'Test 2'
+            ],
+            $retailcrm_history->getAddressLines('Test || Test 2')
+        );
+    }
+
+        /**
      * Mock ordersGet response.
      *
      * @param bool $isSuccessful