I had some trouble because I did not enter the right server settings. The author basically took on the job of finding out what was wrong, fixed my settings and got it working on my site. This was really first class support. The plugin works beautifully and handles the API as required. The author also saw why I had battled and clarified instructions in the plugin. This is an author you can TRUST.
Five stars for Code Quality, Design and Customer Support! I had questions with my customized wordpress site and they responded quickly to all of them, helping me get set up to sell domains. Thank you and great job osCitas team!