Asus Vivobook 16X Freezing Problem

I have been experiencing serious overheating, freezing and sudden shutdown problems with my Asus VivoBook 16X (K3605Z) laptop. Because of this, I sent the device to the Asus authorized service in Kayseri at the beginning of August under warranty. The product was returned to me as “repaired”, but its performance was worse than before. While the device used to crash and shut down almost once every hour, after the so‑called repair it started freezing and turning itself off every 5–6 minutes. It is clear that the device was not properly tested before being returned, which is very disappointing for a brand like Asus. I sent the device back to service for a second time, and it has been there for 5 days now. In total I have not been able to use my computer for about a month, even though it is still under warranty for another year. My current service record number is TRB4W80586. I request that my Asus VivoBook 16X (K3605Z) be thoroughly examined this time, the overheating and shutdown problems be permanently resolved, and if a stable repair cannot be achieved, the device be replaced with a new one or my refund be provided. I kindly ask you to urgently resolve this issue so that I can use a properly functioning product.