Worst customer experience at Hi-Fi Corporation

I just want to share my dissasisfaction with the customer service received from Hi-Fi Corporation. I bought a 65 '' tv with extended warranty. Last week Mastercare came to collect the tv asking me to provide an old blanket to protect the tv as they did not bring anything to protect the tv. 2 days later I phoned Mastercare who told me they cannot fix the screen and was very surprised that Hi-Fi corporation did not inform me. When I phoned Hi-Fi Corporation customer care, I was casually informed oh yes, the manager needs to approve but the manager does not work on a weekend - looking at the time I phoned, it does not seem whether the managers work on Friday afternoons either.. I phoned again yesterday (Monday afternoon) again and was told the manager has Monday off. When I phoned this morning, the lady I dealt with took the day off and her stand in could not find any trace of my case. It is really one of the worst customer experiences I have ever had! There is no sense of urgency and it does not have any concern for inconveniencing the customer.