Since there is no way to create an account from the official website, you might have to contact the developer or the support team instead. If the application requires credit, I think that you will need to purchase an account with credit in order to use their application. You can use the following contact emails to get in touch with the team behind Partner Gold:
Sales : sales@gulf-soft.com
Information : info@gulf-soft.com
Technical Support : support@gulf-soft.com
Hiring and jobs : jobs@gulf-soft.com