Paid for services that 'expire'

I purchased data and sms bundles, paid cash AND in advance, then after a period they take them away! How can this be legal? How can the Consumer Protection Act and Agencies not be doing anything about this?<br> <br> I can understand if they are sold as special offers, but it appears that bundles of sms and data cannot be purchased any other way.<br> <br> I heard on the radio the response from the Cell companies has to do with their accounting systems. How is it legal that their accounting problems become mine?<br> <br> Please Peter can you do something about this.<br>