What are the steps that we do need to follow to resolve error-code
"Contract not signed, please login in console and accept terms of service."
To Get the access token and the refresh token i am using following command
curl -X POST -d "grant_type=password&client_id=MYCLIENTID&client_secret=MYCLIENTSECRET&username=MYUSERNAME&password=MYPASSWORD" /
https://services.mailup.com/Authorization/OAuth/Token
As mentioned in link: http://help.mailup.com/display/mailupapi/Authenticating+with+OAuth+v2