Hisense tv under warranty still no technician called no reference number given

On Thursday 12 September 2019 my hisense smart tv will not turn on i purchased this tv on 20/03/2016. Blinking IR light. I have tried new remote batteries. Even pulled power plug out waited few seconds, still tv not turning on. I called hisense on friday. Never got any feedback. I called makro, they given Refrence number, still no feedback. I went to hisense website to log fault. From Saturday waiting i waited till Monday midday. I called hisense call center, they told me, they received my email. An reference number will be emailed to me, no surch email came. I called again they said technician will call me, no technician called. Is this service i get from hisense warranty. On 16 i went back to makro amanzimtitoi, to report this still no joy. As i am waiting for ever for service. I been twice to makro. I need someone from hisense to assist me urgently.