I recently checked in with Timebridge, a relatively new scheduling app that I had previously signed up with and forgotten about. I found that I had two accounts, setup under two different email addresses. I wanted to cancel one account and add that email address as an alternate to the account I was keeping, and -- as usual these days -- there was no way to cancel online: I had to send an email. I used their generic form to request assistance, and resigned myself to the usual delays or complete non-response that I've experienced in the past.
You can imagine my surprise when I got a response within 30 minutes! Not only that, but it was actually an intelligent response, not some canned "We got your email, now sit back and wait..." mumbo-jumbo that you usually get. The fellow (Lior) actually gave me the option of deleting the unwanted account or consolidating it into the one I was keeping. Now that's help! I said 'consolidate' and within another 60 minutes it was done: I had one account with two email addresses.
BTW, Timebridge is a great little scheduling app which (in its free incarnation) let's you contact folks, offer them meeting alternatives, and gives you back information as to who accepted which dates/times. Very helpful for teams that don't work together on a Novell Groupwise or Microsoft Exchange server. The paid versions offer web conferencing and conference calling services.