Try logging into you coinbase account and using their help center or the in-app support chat for quicker assistance. They also provide support through their official twitter account (@CoinbaseSupport) which can sometimes yield faster responses. Here's also an article from coinbase support page that might be helpful
How to contact Coinbase Support.
This is the best way so far, the safest and you can have priority because you are logged in to your account plus they can easily look up some details in your account if you have a problem with your account.
Especially now we are in the peak, expect a lot of people using exchanges now and high traffic on customer support.