EasySupport is an in-world support customer system based on SmartBots. Your customers can reach out to your support avatar in-world via IMs or notecards and you, or your CSR, can handle these requests via the web interface.
This script is free to purchase, and you can read the message your bot receive, for free. However, if you would like to answer from the web interface, you would need an active Primeasy subscription, which you can get at the mainstore:
http://maps.secondlife.com/secondlife/Printemps/60/35/28