1.- The Wallet needs to be empty. Either move everything out in one go. Or in the case of having less than enough #Bitcoin to move it out, just send it to SeansOutpost(at)gmail(dot)com account at #Coinbase .
2.- Visit the link https://coinbase.com/settings/cancel and the confirm you want to cancel the account.
3.- Wait for e-mail confirmation of the cancellation being in progress. Which hopefully means they actually delete it.
