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I gathered that Blockchain switched to new-style HD wallets sometime in 2016. At that time they used to have logins for both new-style and legacy wallet IDs. They no longer support logins with legacy wallet ID.
- legacy username
- 15-word mnemonic
- passphrase (verified, 15-word mnemonic results in this passphrase using this tool).
Here is the message I get:
Password not working? It may have been changed since the time the wallet was created or a browser error. Please contact the help desk with your wallet recover mnemonic to have a backup restored from an earlier date.
Locked out due to two factor authentication? Please use the following link to reset two factor authentication: Two Factor Authentication Reset
Blockchain's wallet id/password recovery tools do not work with legacy wallets (this makes sense: how can they send me the new wallet ID if I never had one?)
Their "industry leading" support is not responding. I bet they are swamped with requests like this. Is there a way to convert legacy wallet to new-style wallet given the information listed above?