Horrible Brand

My name is Gift Buthelezi I bought a smeg SSA92MAX9 stove as I was about to do my house renovations on the 23/02/2020 at Metro lifestyle Northgate Mall for R16000 but due to lockdown I had to be delayed with my renovations I only installed the stove during November 2020 and the company installed the stove is a accredited installer but now I regret buying this stove its a silver one but now on top where is 2 electric plates it has turn to be brown im very disappointed with this brand as my whole kitchen appliances its smeg im even scared what will be the outcome of this other appliances this is day light ******* can someone help because this is really traumatic to see my money go down the drain just like that if I knew I should have bought Bosch , Defy or other brands. Thank you