Poor quality and no service

We bought a Hisense smart tv 13/1/2020 it did not switch on in Nov 2021, took it in for repairs, they said the main board was broken and the tv was discontinued . We emailed Hisense service. This was the reply "We would like to apologise for the inconvenience caused, we will no longer have the main board of your TV model. Kind Regards, Thuli Ngema Quality and Service Department Hisense SA Sales Holdings (Pty) Ltd." The product has a warranty of 3 years on paper.