Here we are thinking about how we can contact Yahoo customer support phone number! actually the question is that why should I contact yahoo customer service phone number?
Here is some error list, If you face this kinds of errors then you have to contact Yahoo
1> Yahoo account hacked.
2> Yahoo account password error
3> Email lost
4> Unable to send Emails
5> Unable to receive emails
6> Unable to add Phone number
and many more.
If you are facing this kinds of issues with your yahoo account the you need to contact Yahoo customer service phone number