publishing app in zapier platform

Hi, We are trying to publish one app in Zapier platform, as the first step we need to submit review form with login credentials of our app. as mentioned way of guid lines, We couldn’t able to create account with this userid:  contact@zapier.com in our app. As it got already created in one internal product So is there any alternate way to get resolve this issue. Can we get any other userid from Zapier instead of “ contact@zapier.com “