Transmission Failure on Nissan Qashqai 2018 Sky Pack 1.2

In 2018, I purchased a Nissan Qashqai 2018 Sky Pack 1.2 car, believing that regular maintenance of Japanese vehicles would prevent engine and transmission problems. I am still the vehicle's original owner. On June 30th, as I was attempting to accelerate on the E80 highway, I heard a loud thud from underneath the car, and it began to slow down. I pulled over to the right, turned off and restarted the engine, but the car didn't move. I had it towed to the service center in Ümraniye. They checked the car on Monday and Tuesday due to the holiday and diagnosed a transmission failure, stating that the transmission needed to be replaced. After a 203,000 TL discount, they offered a replacement for 187,000 TL. Nissan's headquarters and Turkey office both ignored my requests for assistance. Instead, I had to pay an independent repair shop 54,000 TL to fix the transmission. It's infuriating that even Japanese vehicles can have transmission problems.