Hisense Pathetic aftersales service

The most service ever received. I purchased a tv (55" UHD Smart tv) from Game on the 26 of August 2018. I called Game to advise that the device was not connecting to NETFLIX/INTERNET like it should, They were very helpful and advised on the 13/09/2018 that a Hisense Durban Technician would assist me further. A technician only came on the 19/09/2018, I was advised that they were adjusting the settings, the technician then advised that the software needed updating. On the 20/09/2018 I was told they would come and do the update at 1pm. They only came through at 4pm. He did the upgrade. The tv worked fine for the day and was back to the previous situation the very next day. Since the 21/09/2018 I have had to call everyday and ask Bradley at the Durban office what was happening. To date I have received no joy. How is it possible that a brand new tv could need repairs. I have tried everything and this was my last resort. Hoping to get some assistance now.