Bad service at telkom

I bought a router that comes with a 55inch smart samsung tv from telkom sandton on the 18th of december 2019 and still to date i have not recieved the tv set, they gave me a voucher that I had to redeem to claim the tv and arrange delivery, when I call the number on the voucher to query the delivery i am being told that i must wait til February to receive it as the supplier does not have stock, how can they sell a product that they do not have instore. I am very frustrated as i have been very understanding about this but enough is enough, the manager at sandton telkom does not have feedback for me and i want either a refund or compensation for my time wasted. My name is Lungile Letshele you can call me on ***