Sell faulty products

Telkom is the worst , I bought a laptop on 31/10/21 and ever since then this stupid lenovo has been freezing , non of the applications works, it either takes forever to open up the home screen , the screens blank most of the time , it only gets worst because the stupid thing froze before and after I installed the new microsoft 11 , they sold a faulty device and they want to know nothing about their product because once the sales person have the customers sign for the **** they dont care there after , the customer service is **** because they dont want to stop the contract and rather give me something expensive and I know would actually work. Why am I paying for a ****ty device that has not been working since day one and how in the world does a laptop have to update **** daily and yet it doesnt function. Telkoms products and customer service is the worst. Someone seriously needs to put a stop to all this. How do you tell a customer once you sign you cant stop the contract , how about you don't f***ing sell faulty **** then i wouldn't have to complain to call and cancel the contract. Im so damn upset because i want the contract cancelled or they give me a new product of my choice even if i have to pay more. Imagine getting a product , you have it less then 6 months and you have to send it in for repairs I honestly think thats a load of bull.