Coinbase cancelled my order and doesn't refund

I have ordered $2000 worth of LTC and $1000 worth of BTC on coinbase. Money was transferrwd to coinbase the nezt day from my bank and after 8 business days, on the day the coins are supposed to be deposited into my account(Dec 28, 2017), I have received mails saying those orders are cancelled and I would receive a refund. Can someone tell me how to reachout to coinbase for quick refund, support questions takes forever it seems. Can someone from Coinbase help me with this if you are reading this.