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The secret key for 2FA should be 16 characters long (letters and numbers).
You also mentioned Samourai wallet. Do you have your 12-word seed for that wallet? If you do, you can import it to another Bitcoin wallet like Electrum and then sign a message for the bitcoin address used for deposit on freebitco.in.
So then thateaves the question of how am I all the sudden banned from an account I haven't even accessed in years? Now that I may have a solution I can't check it because the account has been blocked. Unless someone else was using it Improperly? How can I dispute this? That is why the password can't be reset. The account was recently banned and it was within the last month.