I was an early user of coinbase. I only bought a fraction of a coin because of Paul Graham and YC's reputation. Well .. I was wrong. I was not an active trader. It seems they have closed by account and liquidated the btc within (if there were actually btc in my name). I am deeply disappointed that they don't have a telephone number I can call to help figure out the situation. Pretty disappointed.
Today might not be a great day to try that. But reach out to them and ask.