The email was a scam.
- Apple does not include document, or PDF files to download.
- Apple would not refer to you as Dear Customer, Dear Client, or anything other than the name on file for your account.
- Apple would not have such horrible spelling or grammar.
- Apple would not send a message to “Undisclosed Recipients”.
It is a phishing attempt. Do not respond. Do not divulge any personal or financial information. You can use the address below to forward the suspect email message, as an attachment to Apple.
reportphishing@apple.com
If you provided your Apple ID and password at the bogus site, change your password immediately.
https://support.apple.com/en-us/HT201355