Contacted support about a bug June 21 and it's now June 24 and no word back. Not sure if support still exists for this.
Thanks so much for sharing your candid feedback! We're sorry to hear about your recent experience. Our team has responded to your email, and look forward to resolving your issue soon. Thanks for your patience!
Not what it appeared to be, connect to mailchimp, so you presume it enables sending via mailchimp, wrong!