SHOCKING SERVICE FROM HISENSE

Purchased AHisense 43A6000 LED TV in 2021 from a reputable dealer in Durban kzn who i feel is being let down by hisense in providing back up service to their customers. THIS TV HAD THE DSTV Now app which i was specific in asking for as all i ever do is stream apps which worked fine up until the app changed over from DSTV now To DSTV stream. I was asked by hisense service to send an email with my model no and they will send me a software upgrade which i haven't received as yet. I called the kzn hisense repair agent but they have no clue what im talking about. I need this sorted out immediately as i have no access to dstv and depsite me paying for dstv im unable to use it since this app change over. I really regret purchasing Hisense as the service is shocking. Pity as i should have just stuck to samsung. Can somebody from HISENSE TELL ME WHAT THE HELL IS GOING ON WITH MY TV. IS THERE AN UPGRADE??? IF SO HOW DO I GET IT?? AND IF THERE ISNT HISENSE HAS TO GIVE ME A TV THAT WILL RUN THE DSTV STEAM APPP AS THATS WHAT I PAID FOR.