This transaction confirmed a few hours ago and currently has 23 confirmations. Perhaps it took a while for them to broadcast the transaction and that's why it wasn't visible on block explorers.
I have to say that it is very difficult to change your withdrawal Bitcoin address, if you do not have access to your 2FA device. I recently lost access to the device and now I am f$%#ed. I created the Bitcoin address on a custodial service that will not sign the Bitcoin address that I used with my freebitco.in account. (that was years ago)
You can also not do a lot without the 2FA.... and you cannot disable the 2FA, so you guys should protect the 2FA key backup with your life, if you have a lot of coins on this site.

According to the site you can reset 2FA by opening a browser window where you are not logged in and clicking on the
RESET 2FA button.
