IT sounds great but there is NO Customer Service -- emails go unanswered for AT-LEAST DAYS , there is no telephone number just a London street address
does not seem to be a legitimate operation
I fear my coins have vanished.

Copied and then pasted here from the internet:
“Please copy and paste to make viral.
SUBJECT:Why Cryptocurrency Exchanges define the meaning of “fraud.”
Warning: Until you have been financially sodomized you might just take this to be BS.

For hundreds of years the Illuminate has planed for WW III …. it has also planned to collapse its Fiat monetary/Banking system to completely rob all the Goy , stupid-masses, of not only of all their money but also all their property: Yes the real-estate market will crash but BAD.  

The Illuminate  has also planned  long ago to financially sodomize anyone trying to flee their Fiat  Banking/taxing  System  before it collapses.
To do this they established  their Cryptocurrency Exchanges, think: Coinbase.
They established all these Exchanges to financially sodomize anyone trying to flee their soon-to-come Global Fiat-currency/banking-system  collapse.

Conclusion: To these Exchanges all clients are victims:
they do everything they can  to rob their victims:
 that has been the Illuminate plan all along. "

I have serious doubts about Coinbase. The only "Support" they seem to respond within "4+" hours is complaints regarding transactions -- THEY respond by instantly freezing the account ... and their Customer Service will take weeks or maybe never to respond.
I know for a fact that the company has a back-door into their accounts ... so all some "outside exchange"  needs is your email address to use it to buy through your Coinbase account and then instantly vanish the purchase out of your Coinbase account.

I would sooner give my credit card to a stranger than link Coinbase up to a Bank Account.
bad luck.