Apporoximately 6 hours ago I transferred approx $90 worth of bitcoin from my coinbase wallet to my Gdax account using the Gdax transfer option. The status of the transfer shows up on both Gdax and Coinbase as complete but still no btc balance in my gdax account. 

Something is obviously wrong as the transfer from Coinbase wallet to Gdax is supposed to be instataneous.  Of course no way to speak to a real person at coinbase or gdax for assistance.

Any ideas what went wrong and where my btc is?

Thanks in advance.