virtually no customer service

Placed a small order 2 weeks ago. It's passed the "delivery by" date and no one's responding to the emails on their help line. And I'm worried when they eventually do reply that they'll say it's out of stock and it would have been a complete waste of time. Like with all the money this company has made I thought they would have automated this by now and flagged orders that exceed the ETA. Let's hope Amazon is better.