Has anyone who uses Yahoo mail service, recieved a notice to send info or your service, will be cutoff help?

No, don't give any information out! If it were through Yahoo services they could access that information themselves. They can also tell who's actually been using the services because it's catalogued in their systems. NEVER send out information. Don't even reply to them. More often than not it's a virus or a scam.

Yahoo will never do that. it is a scam. Don't take the bait from phishing scams: Use a sign-in seal

this is from yahoo...http://security.yahoo.com/article_privacy.html

"Fraudsters send fake emails or set up fake web sites that mimic Yahoo!'s sign-in pages (or the sign-in pages of other trusted companies, such as eBay or PayPal) to trick you into disclosing your user name and password. This practice is sometimes referred to as "phishing" — a play on the word "fishing" — because the fraudster is fishing for your private account information. "

What is phishing?

http://security.yahoo.com/article.html?aid=2006111...

this could be a scam, in case you persist with it you'll be able to wind up in warm water, they might ask you for some own documents that would get you unsolicited mail or perhaps injury your credit or get yor id stolen, continually delete those mails, fairly some the time do not even open them, obtainable virus attachments. everywhere you win money from will often touch you without postpone. in case you gained some money, you extra suitable than in all probability entered to win it. you not often ever in simple terms "randomly win" something.

You are wise not to trust it. Don't send any information. Yahoo, eBay, etc. will never ask you to update your account.

It sounds like scam to me

it didnt happen before to me but if you think that they will cut of your service you could send them your info.