Where is Yahoo Corporate Office Headquarters HQ 

Problems with multiple Yahoo email Accounts:

I have several yahoo email accounts for well over 15 years. I use them for different purposes (family, general, etc depending). The other day (just like another posted comment below mentioned the same problem), — I tried to log into a key Yahoo email that I use for getting info from the town and a few family and friends, and So, I entered both user name and password correctly. BUT, then faced a CHALLENGE I have never seen before that I needed a CODE to input in order to go past (where THAT CODE was sent to my recovery email address that was also a Yahoo email address…) So, I quickly went to that recovery email and logged in, entered user name, password correctly, and to my surprise ONLY to arrive at the same CHALLENGE screen as the other address ASKING that I go back to the 1st one that wanted the code, to get a code to login in order to login? Both email addresses have each other as the recovery email. SO, I could not get a code from the second (recovery email for the first) due to the same challenge that I was REQUIRED go to for the first email address, to get a CODE to get into the second (that I could not get into due to the CHALLENGE)… This is called an impossible to solve Catch 22 LOOP (created by YAHOO). FREE SUPPORT had no solution AT ALL. So, on a lark I clicked on the other way to Fix option, listing that I call into the support option phone listed on a screen — OH and there was a second option, listing a 6 digit code on that same screen with the phone number too… BUT, found out that I needed a PAID support plan for a problem that YAHOO caused. AND that the 6 digit code was useless. I am sure that Yahoo has not anticipated that recovery email addresses would be YAHOO ones… If I had GMAIL or other as a recovery email, then I would be fine. BUT I do not have anything other than a few Yahoo email addresses that were set up so many years ago that I can not remember my profile info (per se) – I also have Asperger’s (Autism Spectrum) and I could not sleep since this problem that YAHOO caused popped up. I have emails that are urgent that i receive and respond to (medical, others). Online CHAT was a machine that could not answer (and told me so). THIS IS CRAZY. I am very stressed due to a YAHOO created LOOP (that they want ME to pay YAHOO to get fixed). THIS if it is not a mistake in YAHOO, might be seen as a shakedown to get money (oh, I have no credit card for 20 years, no paypal, do not make online payments or purchases of any kind. BUT, I do need my email, and have trusted YAHOO for many years. I am sure you have made a mistake creating this LOOP problem… AND I can not give you an email address below THAT WOULD be a YAHOO email address BECAUSE I can not get into it due to the LOOP problem. Since I read below someone with the same problem… and many are affected. THEN what does that mean. Please fix ASAP.