Nissan probably has some of the worst technicians ever!!

I drive a Nissan magnite CVT Accenta. I took in my car for its 40 000 km service on the 14th of January and it came back with a strange noise when accelerating, especially on hills- a noise that did not exist prior to this service. I reported this and they booked to check this on the 31st of January. On that day, they said they had found nothing wrong with the car, there is no noise they pick up, however I should take a video or recording of the noise and bring it in again if it continues. The sound did indeed continue, I took a video/recording and booked the car again for the 17th of February. Instead of playing a video/recording for them, I requested if the technician that will be working on my car can drive with me so that they can hear the noise as we drive. On the day of the booking, I was unfortunately required at work for an emergency, so my partner took my car in for me. The technician confirmed that he heard the noise on the drive, unfortunately this was not the main technician that would be working on my car, he was an assistant to the technician and he reported that there is indeed a sound when accelerating to the main technician. The technician repeatedly put the car in the diagnosis or diagnostic machine and said the machine is not picking up anything faulty. This was repeated about 4 times and each time after putting it in the machine, my partner would drive with the assistant to the technician and the sound was still there. Due to long hours of being there and it was closing time, my partner came back with a car that still made noise as it accelerated. Today, the 27th of February, the car is still making this sound and it is in fact getting worse- the sound is audible ALL the time now when accelerating and not just on hills. This is frustrating and extremely dangerous as I don’t know if the car will break down on me and be unable to drive.

This is totally unacceptable and I repeat, extremely dangerous! To be subjected to such poor service all while being a compliant customer who pays her dues timeously. I am truly fearing for my life each time I step foot in my car now.