Taking my money and giving me no options

<p>I upgraded from a Top up package to a smart package. At the store they told me my airtime (more than R800) will fall away, but I can buy data with it. Only now did I find out the data I can buy is only valid for 1 month. The packages valid for more than 1 month is only valid for pre-paid clients. How can pre-paid clients have more option than contract clients, and how can I only have an option to stay on the package I have, or lose my airtime. It's my airtime. This seem to me like direct violation of the consumer act. Giving your clients options which are not really options, come on, this is corporate bullying.</p>