Problems with the 2 Factor Authentication code in another account

Hi,

I've already tried to contact support for my problem.

I have another account here (with more high ARP level), but I cannot login to it anymore because the mail that should arrive with the 2fa code...never arrives.

It's not in the inbox or in the spam folder.

The mail just never arrives.

Edit. Oh, right, i've already put the sender mail in the whitelist, provider side, so that couldn't be the problem here.