Terrible after sales service

Purchased a hisense TV on takealot in Nov 2024. TV came with a 48month warranty expiring in Nov 2028. On Monday the 11th I put the TV on and the screen was blank and then 3 big lines appeared on the TV that is mounted to my bedroom wall.

I immediately email hisense customer care. There was no response so the next day I called the call Centre. The person who I spoke to logged a ticket and advised that a technician would contact me. The technician came out on Tuesday evening and confirmed that the issue was a faulty panel. He advised that another department or technician would be in touch with me. Yesterday I contacted the same technician that visited me Tuesday and he told me someone would be in contact with me. I am still waiting for a technician. I emailed the support line and was advised that the tv would be booked in for repairs. But no one can tell me when the tv would be collected or who to contact to collect the tv. I will never purchase another hisense product again. Firstly the tv is less than 2 years old so it should be replaced. Secondly how long does it take for a repairer to collect a TV and repair it. This is unacceptable. After sales service sucks!!