Hirshs Montana faulty new TV -LG QNED86 65 inch

Hirshs montana branch Date 19May Bought a new LG QNED86 65inch tv price R17k ,is faulty, less then 2 hours of buying the tv , they refused to let me let me take it back to store ,stating they want to bring a technician tomorrow. I want my refund ,can’t spend R17k for faulty TV and get a bad after service . My details Puseletso Maraba ***