It might sound genuine, especially with a decent looking Help Centre page, but my subscription has never been to them direct i.e. my subscription is via AIS.Your account is suspended.
Please update your payment information
Hello ,
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The Netflix Team
Questions? Check out the Help Center.
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Please do not reply to this email. If you need assistance or want to contact us, you can visit our Help Center: help.netflix.com.
I will enquire next time I'm at AIS, but the e-mail has phishing written all over it.
Oh, and the real proof is my Netflix subscription works fine.