Each account can have multiple merchant records. Normally this would just have the value of one.You must either supply a Session Key for Authentication or modify your profile to point to a particular account.
In order to run this demo you must have the EasyPay Verifone MiddleWare E2E 1041 Service installed. You may modify your stored profile at c:\ProgramData\EasyPay\Eptools\eptools\profiles to provide an account code and Token and then restart the service. If you supply credentials within the profile then you will always point to that account. Using the session key allows you to point to any account.