For words that only have 3 letters, there's no 4th letter. By way of example with the word “insert”, there aren't any extra letters Later on and so must be the word "increase". The word “addict” is from the BIP39 wordlist however, you might have employed “addi” for “addict”. Keep https://opensocialfactory.com/story19301395/the-invalid-bip39-phrase-diaries