Sorry - just read another thread on this, seems like it's happening to a lot of people. Wish I saw those before making the transaction... eesh
I've used coinbase, sometimes it's just delayed.
Hopefully it has come through by now though because if not then you would have to contact support. And coinbase's support is absolutely cancerous right now, you don't get a response in weeks or even months.
Eventually you will get the funds though. As long as the transaction is broadcasted on the blockchain, it's coinbase's problem.