Safaricom sells bundles online through their website.
Accessing the site is absolutely FREE when connected using a Safaricom line.
To access the service, plug in your Safaricom modem into your computer, input your PIN number (if you have activated PIN), click on connect, go to your Web browser and type http://www.safaricom.com/bundles .
For iPad and Tablets, simply go to your browser and access the website.