Videocon Industries — Refund issue

I've given my Videocon smart TV for repairing on 06/06/2020, but they couldn't do the repair job successfully even after three consecutive attempts. When I asked for my refund of my payment after the second failed attempt of repairing, one of the managers agreed me that I'll get back my paid money if the third attempt goes in fail. But now the managers are denying the refund. Please do the needful for getting my hard-working earned money.