Quote from: lcdc on December 05, 2017, 08:41:05 PM

When I log into my blockchain.info wallet I can see a balance of BTC. I was successfully able to claim BCH in September so assume all the addresses are ok. However I recently logged into extract the private keys to claim BTG I got the following message, "Imported Bitcoin Addresses Not backed up by your Recovery Phrase. Transfer into a wallet to secure funds." Upon reading this message I attempted the transfer the funds as instructed, where I received a second message advising "You have no addresses with a spendable balance greater than or equal to the required dust threshold."

It means you have a very low amount of satoshi's in your wallet and blockchain.info is preventing you from spending these dust output/s. A little info regarding this: https://www.quora.com/What-is-Bitcoin-dust. But the transfer your funds advice is not necessary to access your private keys, It's just a safety precaution from blockchain.info because imported address/es are not included in your backup phrase/Seed. Meaning to say when you import you wallet using those seed/backup phrase, your imported address/es won't be included so you have to make a backup for them separately.

Quote from: lcdc on December 05, 2017, 08:41:05 PM

This obviously concerned me but I continued on to the addresses section of the wallet to extract my private keys to which I can't find any. So my wallet is showing the balance I thought I had when I logged in but the wallet is telling me the addresses do not hold any funds and I can't extract the private keys. I am confused as to what has happened here, if anyone can assist it would be much appreciated.

Since its an imported address, it should be on the Imported Addresses tab if not have you looked into the Archive Tab?

What about your backup for your imported address/es? You don't have it?