stefanija242 Said:
"Apple account: Dear Sir/ Madam I have received this email today. Honestly I'm concerned, about the message. Have you send me this message or is some kind of scam? I signed in my personal information and now I am afraid I might end up without my apple account.[...]"
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Three Things:
A. Report this to Apple:
See my User Tip: Using the Photos App to Report Scams: - User Tip
B. Consider Modifing your Credentials:
Being suspicious of fraud, consider modifying your credentials, ASAP, starting with a new password.
and...
C. What is Safe to Use:
Use Malwarebytes Mobile Security: The free version blocks popups. The paid version blocks out known spam numbers. So, consider using it. It is made by long time users of these forums, making it the only reliable security software for an iPhone. Read the following post to see how to use this software: Blocked numbers - Apple Community
Get it Right on the App Store: Malwarebytes Mobile Security - App Store