diff --git a/src/Id/Concerns/ManagesAddresses.php b/src/Id/Concerns/ManagesAddresses.php
index 7946cb0..ef7596c 100644
--- a/src/Id/Concerns/ManagesAddresses.php
+++ b/src/Id/Concerns/ManagesAddresses.php
@@ -22,4 +22,16 @@ trait ManagesAddresses
         return (new Addresses($this->request('GET', 'v1/addresses')))
             ->setBillable($this);
     }
+
+    /**
+     * Check if the current user has a default billing address.
+     *
+     * @see \Anikeen\Id\Resources\Addresses::hasDefaultBillingAddress()
+     * @throws RequestRequiresClientIdException
+     * @throws GuzzleException
+     */
+    public function hasDefaultBillingAddress(): bool
+    {
+        return $this->addresses()->hasDefaultBillingAddress();
+    }
 }
\ No newline at end of file
diff --git a/src/Id/Concerns/ManagesPaymentMethods.php b/src/Id/Concerns/ManagesPaymentMethods.php
index d71c1be..7710d86 100644
--- a/src/Id/Concerns/ManagesPaymentMethods.php
+++ b/src/Id/Concerns/ManagesPaymentMethods.php
@@ -4,6 +4,7 @@ namespace Anikeen\Id\Concerns;
 
 use Anikeen\Id\ApiOperations\Request;
 use Anikeen\Id\Exceptions\RequestRequiresClientIdException;
+use Anikeen\Id\Resources\PaymentMethod;
 use Anikeen\Id\Resources\PaymentMethods;
 use Anikeen\Id\Result;
 use GuzzleHttp\Exception\GuzzleException;
@@ -24,6 +25,42 @@ trait ManagesPaymentMethods
             ->setBillable($this);
     }
 
+    /**
+     * Check if current user has at least one payment method.
+     *
+     * @see \Anikeen\Id\Resources\PaymentMethods::hasPaymentMethod()
+     * @throws RequestRequiresClientIdException
+     * @throws GuzzleException
+     */
+    public function hasPaymentMethod(): ?PaymentMethod
+    {
+        return $this->paymentMethods()->hasPaymentMethod();
+    }
+
+    /**
+     * Get default payment method from the current user.
+     *
+     * @see \Anikeen\Id\Resources\PaymentMethods::defaultPaymentMethod()
+     * @throws RequestRequiresClientIdException
+     * @throws GuzzleException
+     */
+    public function defaultPaymentMethod(): ?PaymentMethod
+    {
+        return $this->paymentMethods()->defaultPaymentMethod();
+    }
+
+    /**
+     * Check if the current user has a default payment method.
+     *
+     * @see \Anikeen\Id\Resources\PaymentMethods::hasDefaultPaymentMethod()
+     * @throws RequestRequiresClientIdException
+     * @throws GuzzleException
+     */
+    public function hasDefaultPaymentMethod(): bool
+    {
+        return $this->paymentMethods()->hasDefaultPaymentMethod();
+    }
+
     /**
      * Get billing portal URL for the current user.
      *
diff --git a/src/Id/Resources/Subscription.php b/src/Id/Resources/Subscription.php
index d14b6b1..fca2b52 100644
--- a/src/Id/Resources/Subscription.php
+++ b/src/Id/Resources/Subscription.php
@@ -10,15 +10,50 @@ use GuzzleHttp\Exception\GuzzleException;
  * @property string $id
  * @property string $name
  * @property string $description
- * @property string $status
  * @property string $unit
  * @property float $price
+ * @property float $vat_rate
+ * @property array $payload
  * @property string $ends_at
+ * @property string $webhook_url
+ * @property string $webhook_secret
  */
 class Subscription extends BaseResource
 {
     use HasBillable;
 
+    /**
+     * Update a given subscription from the current user.
+     *
+     * @param array{
+     *      name: null,
+     *      description: null|string,
+     *      unit: string,
+     *      price: float,
+     *      vat_rate: null|float,
+     *      payload: null|array,
+     *      ends_at: null|string,
+     *      webhook_url: null|string,
+     *      webhook_secret: null|string
+     *  } $attributes The subscription data:
+     *    - name:           The name
+     *    - description:    The description (optional)
+     *    - unit:           The unit (e.g. "hour", "day", "week", "month", "year")
+     *    - price:          The price per unit
+     *    - vat_rate:       The VAT rate (optional)
+     *    - payload:        The payload (optional)
+     *    - ends_at:        The end date (optional)
+     *    - webhook_url:    The webhook URL (optional)
+     *    - webhook_secret: The webhook secret (optional)
+     * @throws RequestRequiresClientIdException
+     * @throws GuzzleException
+     */
+    public function update(array $attributes): self
+    {
+        return (new self($this->billable->request('PUT', sprintf('v1/subscriptions/%s', $this->id), $attributes)))
+            ->setBillable($this->billable);
+    }
+
     /**
      * Force given subscription to check out (trusted apps only).
      *
diff --git a/src/Id/Resources/Subscriptions.php b/src/Id/Resources/Subscriptions.php
index ca2aa48..fd9f7f0 100644
--- a/src/Id/Resources/Subscriptions.php
+++ b/src/Id/Resources/Subscriptions.php
@@ -4,7 +4,6 @@ namespace Anikeen\Id\Resources;
 
 use Anikeen\Id\Concerns\HasBillable;
 use Anikeen\Id\Exceptions\RequestRequiresClientIdException;
-use Anikeen\Id\Result;
 use GuzzleHttp\Exception\GuzzleException;
 
 class Subscriptions extends BaseCollection
@@ -16,24 +15,24 @@ class Subscriptions extends BaseCollection
      *
      * @param array{
      *      name: null,
-     *      description: string,
+     *      description: null|string,
      *      unit: string,
      *      price: float,
-     *      vat: null|float,
+     *      vat_rate: null|float,
      *      payload: null|array,
      *      ends_at: null|string,
      *      webhook_url: null|string,
      *      webhook_secret: null|string
      *  } $attributes The subscription data:
      *    - name:           The name
-     *    - description:    The description
+     *    - description:    The description (optional)
      *    - unit:           The unit (e.g. "hour", "day", "week", "month", "year")
      *    - price:          The price per unit
-     *    - vat:            The VAT (optional)
+     *    - vat_rate:       The VAT rate (optional)
      *    - payload:        The payload (optional)
      *    - ends_at:        The end date (optional)
-     *    - webhook_url:     The webhook URL (optional)
-     *    - webhook_secret:  The webhook secret (optional)
+     *    - webhook_url:    The webhook URL (optional)
+     *    - webhook_secret: The webhook secret (optional)
      * @throws RequestRequiresClientIdException
      * @throws GuzzleException
      */