BREACH OF CONTRACT

I purchased a computer from one of your stores (Southgate) JHB. When my computer decided not to go on one day I took it to the store as I had warranty and Insurance which I pay for to date. I left the item at the store and as per the manager I e-mailed him the receipt / delivery note for tehm to be able to asist. I then after a week received a call from a guy named Lucky who advised me that un fortunately they could not fix the item as it was out of warranty. I advised lucky that I am paying Insurance every month as I was told when purchasing the item that insurance would cover any risk, damage or if the item gets ******. Lucky then advised that he was not aware of this and would revert back. Lucky came back one and a haf weeks later stating that once the warranty lapsed the Insurance also lapsed. I asked him if the insurance lapsed why am I still paying insurance every month and he could not give me an answer, I asked him to put everthing he had told me in writing and request for the Store Manager (Ebrahim ) to contact me but to date I still have not received a call or mail from either one. This has now been going on for over three weeks and I am not getting any asistance from any