1. Please login at AppStore first, you can find the Login button on the top navigation bar as below
After sign in , click your profile icon on the top navigation bar to see your Org ID. (Please make sure your Role is Owner.)
2, Please contact your sales window or provide your request here:
3. In the inquiry from, please provide your Org ID in “Tell us about your project:” column, so the sales people can know your Org ID.