LG 70UJ675V TV Panel Reflector Cracked After 6 Years and Service Claims User Error

My LG TV model 70UJ675V developed a defect after just six years. The TV has become unusable due to a cracked panel reflector, as seen in the attached photos. This same crack has appeared in other TVs of the same brand and model, indicating a latent defect—a hidden manufacturing flaw that only emerged later. However, the service center insists it’s a user error and is suggesting a panel replacement for ₺25,000 based on unconvincing reasons. Their claim—that the crack resulted from temperature changes or cleaning the panel with a damp cloth—lacks substance and contradicts common sense. Below is a link to a listing for another TV of the same brand and model with a similar issue within a comparable time frame: [link](https://www.sahibinden.com/ilan/ikinci-el-ve-sifir-alisveris-ev-elektronigi-televizyon-70uj675v-4k-lg-televizyon-1201599092/detay).