Ridiculous service from Hi-sense service centre

On 30 September we reported our Hi-sense tv broken for the second time in 5 months. Same issue as last time the back lights had broken. On the 2nd of October a Technician arrived and I asked him if we couldn't rather have the tv replaced instead of repaired because it was the second time the tv broke for the same reason. He contacted his Supervisor and said I must fill in the Service Repair Job Card in my own handwriting and tell them we want them to consider replacing the tv instead of repairing it. He left without taking the tv with him; he informed me that someone would contact us the Monday to tell us what to do. Needless to say nobody contacted me. I contacted them on the 6th of October twice as I was cut-off. Asked them what the hell is going on? They informed me that it is recorded on the system that I refused repair of the tv. I explained to them exactly what had transpired and that was factually incorrect. After a lot of debate they said they would send a Technician again. The Technician came on the 8th of October to fetch the tv. I phoned on the 14th of October asking about the tv. We were told that the Technician will collect it by the Supplier on Saturday and we will have it by Monday. Well Monday came and went so I phoned them again today, today I was told that the Technician needs to collect it from the Supplier, test it and bring it back, and so the waiting continues. Please, please, please if I have any advice for you never ever buy a Hi-sense or any of their products for that matter, customer service does not exist for them.