If you use iTunes to pay for Netflix, you'll need to adjust your plan settings through iTunes itself instead of the Netflix website. This will open the Sign In window. If you're already signed in, you can skip these steps. Make sure to use the same Apple ID that you use to pay your Netflix bill. This will open your account page in iTunes. You'll be asked to enter your Apple ID password again. This will allow you to make changes to your iTunes subscriptions, including Netflix. You'll be asked to confirm that you want to make the change. Your changes will take effect on your next billing date.  In most regions, you will have three plan options: One Screen in Standard Definition (SD), Two Screens in High Definition (HD), and Four Screens with HD and Ultra HD (UHD). The more expensive plans will provide higher-quality video and allow more people to watch at once. Not all options are available in all regions. Netflix recommends a 3.0 Mbps connection for SD content, a 5.0 Mbps connection for HD content, and a 25 Mbps connection for UHD content. If you began your membership before 5/10/2014, you'll only see the two-screen option. To see all of the available options, you'll need to cancel your subscription and then resubscribe. If you started your account after 5/10/2014, you should see all of the available options.

How would you rephrase that briefly using Indonesian?
Buka iTunes di komputer. Klik tombol "Sign In" (log masuk) di bagian atas jendela iTunes untuk membuka jendela log masuk. Masukkan ID dan kata sandi Apple. Klik gambar profil sudut kanan atas dan pilih "Account Info" (info akun) untuk membuka halaman akun iTunes. Temukan bagian "Subscriptions" (langganan) dan klik "Manage" (kelola). Pilih paket baru yang diinginkan di bagian "Renewal Options" (opsi pembaruan).