By following the advice below, you can greatly increase the chances that you will be credited:
Make sure your browser is set to accept all third-party cookies. Enabling browser cookies is
very important and will ensure that your activity is tracked properly.
how to enable cookies for Chrome.
Temporarily disable any ad-blocking programs or browser extensions that may be blocking cookies.
If you have any anti-spyware or virus protection programs (e.g. Norton) installed, check
to make sure that they are not set to block third-party cookies.
If you are connected to the internet via a proxy server or public connection, try
connecting through other means.