Hi Mayco,
My issue resolved. Its simple. While creating AWS account i provided Card details. For security reasons i provided virtual car will expire in day. I think AWS is validating card and after that i got email from Amazon mentioning that EC2 Services are not activated.
I didn't noticed that in a email which was came from AWS.
Now i added my card details and i was able to activate the service.
Once activated i provided same user details through which i was trying to create new account.
This time i was able to create account.
As mentioned by Rachdev create 2 groups and assign the Policies and then assign the groups to the user and download the keys use same keys while registering at https://cal.sap.com
Note : now that Demo App i.e. Demo appliance landscape for the openSAP course "Introduction to SAP Fiori UX” is not available in Solutions.
May be if they make it available it will chagable
UmaShankar Boga