diff --git a/src/Requests/OrderRequest.php b/src/Requests/OrderRequest.php
index 69c3972..8b14c22 100644
--- a/src/Requests/OrderRequest.php
+++ b/src/Requests/OrderRequest.php
@@ -54,9 +54,9 @@ public function get(string $orderId): ?Order
      * @return mixed|null
      * @throws \GuzzleHttp\Exception\GuzzleException
      */
-    public function create(\stdClass $options)
+    public function create(\stdClass $options, $isMock = false ): mixed
     {
-        $response = $this->postRequest('/v1/orders', $options );
+        $response = $this->postRequest('/v1/orders' . ( $isMock ? "?isMock=1" : "" ), $options );
 
         if ($response->getStatusCode() == 200)
             return json_decode($response->getBody());
diff --git a/src/Requests/SubscriptionRequest.php b/src/Requests/SubscriptionRequest.php
index e3b609f..e24df91 100644
--- a/src/Requests/SubscriptionRequest.php
+++ b/src/Requests/SubscriptionRequest.php
@@ -44,4 +44,19 @@ public function get(string $subscriptionId ): ?Subscription
         else
             return null;
     }
+
+    public function update( string $subscriptionId, int $quantity ): ?Subscription
+    {
+        $data = new \stdClass();
+        $data->quantity = $quantity;
+        $data->startdate = date("Y-m-d");
+        $data->billingTerm = "Monthly";
+
+        $response = $this->putRequest('/v1/subscriptions/' . $subscriptionId, $data );
+
+        if ($response->getStatusCode() == 200)
+            return Subscription::parse(json_decode( $response->getBody() ) );
+        else
+            return null;
+    }
 }
diff --git a/src/Responses/OrderLine.php b/src/Responses/OrderLine.php
index 87227b9..99e875b 100644
--- a/src/Responses/OrderLine.php
+++ b/src/Responses/OrderLine.php
@@ -6,15 +6,19 @@
 
 class OrderLine extends AbstractResponse
 {
-    protected string $productId;
+    public string $productId;
 
-    protected string $subscriptionId;
+    public string $subscriptionId;
 
-    protected Carbon $provisionStartDate;
+    public Carbon $provisionStartDate;
 
-    protected string $billingTerm;
+    public array $provisioningDetails;
 
-    protected int $quantity;
+    public string $billingTerm;
+
+    public string $commitmentTermId;
+
+    public int $quantity;
 
     /**
      * @param string $productId
@@ -67,7 +71,7 @@ public function setProvisionStartDate(Carbon $provisionStartDate): OrderLine
      */
     public function getProvisionStartDate(): Carbon
     {
-        return $this->provisionStartDate;
+        return $this->provisionStartDate->toDateString();
     }
 
     /**
@@ -88,6 +92,24 @@ public function getBillingTerm(): string
         return $this->billingTerm;
     }
 
+    /**
+     * @param string $commitmentTermId
+     * @return $this
+     */
+    public function setCommitmentTermId(string $commitmentTermId): OrderLine
+    {
+        $this->commitmentTermId = $commitmentTermId;
+        return $this;
+    }
+
+    /**
+     * @return string
+     */
+    public function getCommitmentTermId(): string
+    {
+        return $this->commitmentTermId;
+    }
+
     /**
      * @param int $quantity
      * @return OrderLine
@@ -105,4 +127,20 @@ public function getQuantity(): int
     {
         return $this->quantity;
     }
+
+    /**
+     * @param string $key
+     * @param string|array $values
+     * @return $this
+     */
+    public function add(string $key, string|array $values ): OrderLine
+    {
+        $line = new \stdClass();
+        $line->key = $key;
+        $line->values = is_string( $values ) ? [$values] : $values;
+
+        $this->provisioningDetails[] = $line;
+
+        return $this;
+    }
 }