Incoimg mail disabled for 1 account

Incoimg mail disabled for 1 account

I disabled an account because I entered the wrong name as the email address.
I tried disabling it to create a new one but it still counted as one of my 5 free emails so I re enabled it, but now it cannot receive incoming mail, says this is for paid users only, when the other 3 accounts can receive emails.

Could you remove the email naileddown@goblinzez.com completely so I can create a new one with the correct email name?