Contact
One person reads everything, so answers are considered rather than instant.
Best for anything involving an order number. Include it in the subject line and it gets answered faster.
Response time
Within 24 hours
Usually much sooner. Warehouse and sourcing questions can take longer when they need a reply from China first.
A contact form is coming
Not shipped yet, because a form needs somewhere reliable to send mail and protection against being used to spam other people. Rather than put up a form that might quietly drop your message, this page lists the channel that works. The form arrives with account email.