I want to contact yahoo by phone?
There is a new paid service called Yahoo Account Pro. Details at this link. https://productcentral.yahoo.com/products/yahoo-account-pro-help It is possible that they can be of help but there is no guarantee that paying for the service will solve your problem. There is no other paid or free phone number. This is only available in the US.
You can't. Yahoo went out of business more than 4 years ago. Contact Verizon/Oath instead.
Son of T3
There is no free phone, email, or chat support for free Yahoo accounts. You must use the Help files, the appropriate Suggestion Board, or ask your questions here. The Corporate phone is 408-349-3300, but they offer no support. You can try firstname.lastname@example.org but do not expect an answer. The new pay service can be found at the reference.
can't, unless you are an advertiser ............................
Yahoo has no direct customer support, email, or phone numbers you can call: https://help.yahoo.com/kb/account/sln6349.html