Well, to my knowledge there's no official mail that asks you to visit a website and enter credentials in order to stop an account from being banned Blizzard seems to be more inclined to send an email when the account is already banned, temporarily or permanently so the content of the mail is fairly different
The point is, they could use most of it and only need a few extra lines, making it look much more legitimate than the gibberish posted by the OP.
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