Unhappy Frustrated

Bought a TV in 2020 June month. We boxed in and stored it until we moved into our own place September 2021. TV has now stopped working after only being played for a few months. We called the store to advise and they said we need to make contact with the Hisence Technician. (first of all didn't deal with you supplier). So then a call was logged and a Technician will be coming out to assess it first before advising us what is wrong with it. As both working folks we cant stay out of work for this. We then dropped the TV at the stores and told them to deal with the Technician. I have advise the SA from the beginning that I do not want this TV to be repaired cause if it can happen over a period of months what about the long run after it being repaired. I have advised her either to give my money back or give a voucher in order to purchase a better quality TV. I haven't had any calls from the Store manager as yet. Cause Hisense Technician says it up to the Store manager to decide whether to replace it. Then the SA advise no it is up to Hisense to decide. Now who is actually the right person to speak to regarding this issue. If we do not call in for update there is no update at all. I do not want a repaired TV period. Process was advise it will take 7-14 workings days. Well this is really unlike as the store didn't wait that long for my money to reflect in there account.