Disabled from log in

Hello,
How to recover my Facebook account. Disable ineligible issue

Hello,

I've been emailing an account that I know is active and it's a address that receives alot of public emails. I've been emailing for years and not always receiving a reply. However for the first time, this morning I sent an email received the 554.30 reply below. I know the account is busy and active normally until this morning. Can this mean they blocked me? Can this mean their inbox was full and could not receive any incoming mail at that time?

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Address not found
Your message wasn't delivered to ***@*** because the address couldn't be found, or is unable to receive mail.

The response from the remote server was:

Hello, I am getting  "you need the official whatsapp to use this account android" when i try to login in WhatsApp using my number. I downloaded WhatsApp from official Play Store. I even tried downloading apk from official website and installing. I even formatted the phone and tried again. Still i am getting same results. I tried contacting WhatsApp support but they are saying to use official WhatsApp. If someone know how to resolve please help me out. 

Hello,

My personal account disabled

Hello, i mailed a email ******@yahoo.com and it came back mailbox disabled 554. When will this account be available for signup again? I asume account have been disabled because of inactivity?

Will Yahoo tell when the account is scheduled for deletion if i call Them?