user65931: 4 years ago I bought bitcoin and I have 
a 17 word mnemonic phrase
an identifier
a bitcoin address
and what I believe is a password
Does anyone know how I can access this bitcoin?

user65907: Do you remember where you created the wallet?
I assume it was a legacy wallet on blockchain.info, if so you can recover your ID and password here https://blockchain.info/wallet/forgot-password .

65931: <p>4 years ago I bought bitcoin and I have 
a 17 word mnemonic phrase
an identifier
a bitcoin address
and what I believe is a password</p>

<p>Does anyone know how I can access this bitcoin?</p>
 65907: <p>Do you remember where you created the wallet?
I assume it was a legacy wallet on blockchain.info, if so you can recover your ID and password here <a href="https://blockchain.info/wallet/forgot-password" rel="nofollow noreferrer">https://blockchain.info/wallet/forgot-password</a> .</p>
