If my Yahoo account was stolen, is there any way to retrieve it?

Hi guys, I can no longer log into my yahoo id and i think someone may have hacked in and changed my password, any way i can get this id back. Have contacted yahoo and got no answer, I run a business and this id is my mail address so its very important...

My yahoo account was hacked into. My user name and password were changed, as well as one of my security questions. Now all of the email from my folders are deleted, as well as my contact list. Does yahoo have them backed up for retrieval?

Some important messages were in my daughter's Yahoo email account (at least as late as Oct-Nov 2011). She checked her inbox today and the messages were gone. Is there any way to recover these messages? If necessary, the senders' contact information can...

My account was hacked, I cant get into my email or anything else. Keep getting invalid ID or password. But for the life of me I can not remember what i chose as my security question or answer. Or maybe that was changed somehow to. Is there any way to...

I need to retrieve a few e-mails that were e-mailed to my a few days ago. I deleted them at the time not knowing that I need them now. I just need to know if they can be retrieved from somewhere if it's been with in the week or two from deletion?

I HAVE EMPTIED THRASH FOLDER BUT I NEED THOSE MAILS, PLEASE TELL ME HOW TO RETRIEVE THOSE MAILS?

also only the inbox was imported from yahoo

chat through yahoo messenger and uses another yahoo id bfw_sassy. unfortunately that ID was stolen was stolen by someone with this ID xn--www_killer_clan-xn02am87kn97c who frequents the chatroom that i frequent too. What I'm concern is the picture that...

Last June, I accessed my yahoo email account, & was able to send messages to my friends & relatives, then signed out. After an hour, I decided to sign in again, but could not access my account. I re-entered my password several times, but could...