Sinotec tv is ****

I bought i sinotech 55 inch smart tv from hifi corp in 2019, i never made use of the smart ****ion but recently when i cancelled my dstv, i cant use the smart fucntion. I cant watch ot download netflix or any other tv progremme. I have to buy a smart box now in order to use my smart tv. I really dont recommend anybody to buy a sinotec smart tv, its the worst.