My yahoo account was recently used to send a large number of bogus emails,by a virus or hacker or something. How do I contact Yahoo to get my email service re-instated? I haven't been able to

I want solution and I want to check my emails which have come on my yahoo.

Sounds like your email account got taken over. Changed your yahoo account password.

Contact yahoo, change your password...

If you need further help, I’m available over the phone at https://www.6ya.com/expert/robert_573a00ba7e399076

Access your E-mail account from a different computer and then try sending the email to your friends. Your computer is probably infected by an automatic E-mail sending virus/malware. Update your anti-virus software and then do a FULL virus scan of your computer. If you don't have an anti-virus software, you should get one. You can get some for free or free trial. Avast and AVG are highly recommended.

Do you use a yahoo client on your computer? If so, your computer is probably infected with a virus. The only reason that you would be sending spam from your email account is if someone hacked it, or if you are using a client program on your computer, and it is infected with a virus.

If you are using the web version of yahoo, please change your password immediately.

Otherwise, download the free version of malwarebytes at www.malwarebytes.org. Install and update the program, then run a scan. It will remove most viruses.

Some "computer-hacker" has obtained the password to your Yahoo! account,
and is logging-on with your ID and your password, and is sending "spam" E-mail,

Change your password. Change your "secret-questions".

Then, contact Yahoo!, to get the "block" removed.

Recently spam hackers have been hijacking Email accounts to use for their own dirty deeds and scams. The best thing to do is to deactivate your Yahoo account and make a new one.

Click here to go to the Yahoo compromisation web site and follow the instructions to disable your account.

The reason deleting the account is because these spam hackers are sending unwanted advertising to all your contacts claiming to be you. As far as you know they might even be sending emails to all your contacts asking for money.
There was a recent scam where spam hackers hijacked this lady's account and sent a message to all her contacts that she was stuck in Namibia and needed money to be sent to a specified account to get home.

To stop it, delete your email account, or if you are able to regain access, change your password to something a little more complex and define for yourself a few security questions only you would know. Another thing is just to contact all the people you had in your contacts and tell them that you account has been compromised and that they must ignore any emails received from it.

Had you ever assigned a special question to your account that only you will know the answer?
It is clear to me that you have probebly use the same password for both your Facebook account and your Email.

You can go here and declare your account compromised. It will ask you for your Yahoo ID and to copy the provided code into the block provided.

Sometimes Yahoo mail servers are comprimised by spam hackers for spam use so don't go accusing you ex's mother just yet.

It would be a good idea to open a new account and tell all the people who you had in your contacts that your Yahoo account has been compromised.
There was a recent scam where hackers were hijacking accounts and sending mails to all your contacts claiming to be you and telling them to deposit large sums of money into a certain account as you are stranded in Nigeria.

With this in mind:
1) Declare your account compromised here.
2) Delete your old account.
3) Create a new account.
4) Assign security questions that ONLY you would know the answers to. (This is a major way in preventing this from happening again)
5) Send emails to all of your contacts that you had in your old account telling them of the compromisation and to ignore ALL emails from your old account.

Your rating for this solution is highly appreciated.
Thanks.

Your Yahoo email or Yahoo Messenger account was most probably compromised. The virus is running a script that automatically send out SPAM or abuse emails to all your contacts save in your Yahoo Mail or Yahoo Messenger account. You can do a FULL virus scan on your computer to remove this. Below is a free but effective online scan that you can use:

http://eset.com/onlinescan

You can also uninstall the currently installed Yahoo!Messenger and reinstall a new one.

Hope this helps.