Vodacom tracker service being discontinued

Last year I purchased a Vodacom tracker from a Vodacom outlet. The service for the tracker is provided through Vodacom's SmartApp. Now I have been informed that this service is being discontinued and the tracker will no longer function. After paying for the tracker, I believe that I should be refunded for the purchase that they are making obsolete not even 2 years later. I have contacted Vodacom twice already via email for a solution but a month later have yet to receive a response. Very poor service.