My husband has had his Hotmail account blocked and in spite of much trying he is failing to unblock it

IAs he can't email I have contacted online support and had a reply that they would contact me within 24 hours but have failed to do so. 

WHAT MORE CAN I DO?????????

The email address was setup  a fair number of years ago and The phone number to text the code to is no longer a valid number. Hes asked for it to be emailed to the given email, but nothing as appeared even in junk mail. Hes tried the form a number of times he's only emailed my work email to forward mail, but it didn't think our answers were good enough.

every link to recover the account always seems to gets back to the page where He has  to fill in the info hes having trouble with in the first place

He has tried to recover the password via the alternate email but not receive it, He has filled out the information to best of his knowledge.

SOMEONE must have tried to access his account for him to be in this situation but he really needs to be able to access it

Oh just to clarify this account is NOT the account he is having trouble with!!