Service of Hirschs Springfield Park Manager

A long story in short, we purchased a Samsung QLED 65cm TV from Hirsch's Springfield Park in August 2022. This was only installed in Jan 2023. In April 2023 the TV packed up. I logged a call with Hirschs and It took Samsung a week to come out. This has not yet been resolved. When dealing with the Store Manager Nazereen, she will not take accountable, responsibility. Service level from a store manageress is pathetic, no customer service skills is dealing with issues of a customer that spent 15k for a Samsung TV. She will not exchange or do a refund with all the issues I have experienced with the TV set.