计费周期锚影响条带订阅中的金额

Question

当我创建订阅时，我给了一个自定义的billing_cycle_anchor起作用了，但计划的金额却被打乱了，我给了2995美元，但是当我通过条纹仪表板时，给了我1995年的订阅额

    $plan = \Stripe\Plan::create([
   "amount" => 2995,
   "interval" => "year",
   "product" => [
   "name" => $_POST['plan_name']
],
   'nickname' => $_POST['plan_name'],
   "currency" => "usd",
   "id" => $product->id
]);

$subscription = \Stripe\Subscription::create([
  "customer" => $customer->id,
  "items" => [
  [
  "plan" => $plan->id,
  ],
],
  'billing_cycle_anchor' => $billing_cycle_anchor, //01-01-2020
   'prorate' => true,
]);
}