Telkom Internet package not provided as per contract

<p>My wife signed up for an internet package and modem from Telkom in December last year at the offered rate. They new telkom line was installed in January 2017. They had mentioned that they did not have modems in stock and we have to wait for the modem. It is now July and to date have not received the modem. We have requested to cancel the package on numerous occasions due to the package not being fulfilled and Telkom mention we cannot until we pay our account up to date. We have spoken to management in store and they have said we should just pay and then they might refund us later. We feel that how should we pay for a service that has not been given. I'm looking for someone that we can contact and get this matter resolved ASAP as they are threatening to blacklist my wife.</p>