Hyundai grand i10 2025

I bought a grand i10 2025 in July on the 26 March 2026 when I walked to my car on the parking i notice the back windscreen had cracks on both sides and there were pieces of glass on floor still shocked the whole windscreen started cracking. The weather was not very hot and i park under a shelter always.I went back to Hyundai to report the problem they just gave me a quote of R3700 i was hoping they would investigate a factory fault or something 🥺😫😫 am so hurt broken I don't have the money to fix it and my insurance also can't fix it i don't know what do 😭😭😭